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   Provisional Estimate for Demurrage and Despatch: Sometimes, before sufficient details about port calls and events have been received to make a full aytime calculation, it might become  necessary to make a provisional estimate in the Laytime Calculation for either demurrage or despatch to make the /wiki/spaces/DLOYPRODUCTS/pages/923506307and result as realistic as possible.
   
   To make a provisional estimate:

   1. Open relevant voyage and locate relevant port to make the provisional calculation for.

   2. In the Cargo field:

      1. Check Fixed beside demurrage and/or despatch (depending on what is being calculated) field/s in the cargo row field.
         Note: This will lock estimated amounts and prevent demurrage/despatch from being recalculated when Recalculate is clicked.

      2. Enter the total demurrage (if any) under Demurrage.

      3. Enter the total despatch (if any) under Despatch (if any). 

   3. In the Cargo Port field:
      
      1. Enter the demurrage details by port in the cargo port row under the Demurrage column.
         Note: Does not automatically accumulate. For information purposes ONLY.
   4. Enter the despatch details by port in the cargo port row under the Despatch column..
      Note: Does not automatically accumulate. For information purposes ONLY.
   5. Click Recalculate.
   6. The provisional estimate is be calculated and appropriate fields in the Voyage Estimate module are automatically updated with the Laytime Calculations module each time a calculation is refreshed and recalculated, i.e. each time Recalculate is clicked.
      
      

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   Laytime Quantity Option: An extra quantity column called Laytime Qty (Laytime Quantity) can, in the Cargo Ports field, be located to the right of the Quantity column. Under Quantity, data is automatically retrieves data from the Voyage Estimate module. The row fields under Laytime Qty remains blank until data is manually entered. The fields of the column is used when the retrieved data, (originally entered in Voyage Estimate or from Bill of Lading (B/L)), under Quantity is inaccurate or cannot be used. The quantity to be used is entered Laytime Qty will override any data stated under Quatity for the applicable port. Note: Manually entered data under Laytime must be MANUALLY removed.
   
   Example:
   
   
   To use the Laytime Quanity Option:
   

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   Total Laytime Option: The option of stating laytime in actual numbers, for example X number of days or Y number of hours (as opposed to a number/quantity (for example, 10000 MT/day)). The laytime will therefore not vary depending on quantity, but solely on time. The total laytime option can be used for both loading and discharging (typical in tanker scenarios). If the option is used, this is entered under Terms in either the Charter Party- or Cargo field (depending on if it is for the total of the charter party (CP) or for each cargo individually. The terms in the Cargo Port level will adjust automatically.
   
   Example:
   
   
   
   
   1. Open relevant voyage and locate relevant port to make the provisional calculation for.
   2. In the Cargo Port field:
      1. Enter the quantity to be used in the cargo port row of applicable cargo under Laytime Qty (Laytime Quantity). 
   3. Enter all other relevant details in all other relevant fields to perform the laytime calculation.
   4.  Click Recalculate.
   5.  The laytime calculation is refreshed and recalculated.
      
      

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   "Fixed feature" - (Cargo, Cargo Port): This option allows entered demurrage and/or despatch date to be "locked", i.e. the data entered/calculated will not alter if Recalculate is clicked. There are four Fixed checkboxes, each to the right of the respective demurrage and despatch columns in the Cargo- and Cargo Ports fields. This enables locking demurrage and/or despatch both per cargo and per individual cargo port. This feature can for example be used when provisional estimates for demurrage and/or despatch are being made.
   
   Example:
   
   
   
   

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   "Cargo Port Features" - (Add Load Port, Add Discharge Port, Remove, Copy Dates, Paste Dates): These features allows adding/removing load-and discharge ports to a cargo port rotation and the copying and pasting of dates and times to avoid repeated manual entry of the same data. Useful and time-saving, especially when doing calculations on relets where the terms are very similar for charterer and owner.
   
   To open menu: Click a cargo port in the Cargo Port field and right-click the mouse. The menu will display.
   
   
   
   
   1. Add Load Port: Adds a new cargo load port to a cargo's port rotation. Displays as a row in the Cargo Port field.
   2. Add Discharge Port: Adds a new cargo discharge port to a cargo's port rotation. Displays as a row in the Cargo Port field.
      
   3. Remove: Removes a selected cargo port from teh Cargo Ports from a calculation.
   4. Copy Dates: Copies entered date and time.
      1. To copy dates:
         1. Right-click the cargo port with entered dates and times to be copied.
         2. Select Copy Dates.
         3. A copy of all relevant dates, including deductions, for that cargo port is be saved to be entered elsewhere using Paste Dates, for example all the dates from one cargo port can be copied to a second port.
   5.   Paste Dates: Pastes copied dates and times.
      1. To paste dates:
         1. Right-click the cargo port where copied dates and times are to be entered.
         2. Select Paste Dates.
         3. All relevant dates, including deductions, from another copied cargo port will be pasted into the selected cargo port (as applicable).
            
            

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   Aggregating Criteria for Laytime Calculation for Multiple Cargoes: If a single booking is split into several individual cargoes each will by default be calculated separately in the Laytime module. To calculate one or more of the ports aggregated, the cargoes must updated and meet certain criteria.

   1. Criteria:

      1. Each cargo must belong to the same charter party (CP).
      2. Each of the ports that should be aggregated together must have the "Prorate" check-box ticked.

      3. Enter the demurrage and despatch rate on each of the cargo ports to be aggregated.

      4. Any deductions must be entered under the Cargo Port section.
         Note: It is sufficient to enter all deductions under one of the cargo ports involved.

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