Factor
The 'Factor' field allows you to increase or reduce a result (the primary result, as shown in the ‘Drawings’ tab; in the ‘WBS’ tab there can be modified results too) as well as to convert it to a different measurement unit. For example, suppose you want to calculate the total weight of 5 similar drainage grids in kg and each grid weighs 100kg. Enter 100 and kg in the factor and Unit fields respectively and the total weight of the grids will be immediately calculated.
In the Pro version, you
are advised to use appropriate calculation formulas instead of a factor when
linking a measurement to a work item.
In the case where, for example, besides the
area measurement of a floor, you wish to calculate the number of tiles needed,
you can add an extra work item to the WBS, named ‘Tile number,’ with items as
its unit of measurement. You can then link the measurement with this new work
item using an appropriate factor to convert area to items. Be careful to set the
unit price of this work item to zero, so that it does not alter the total
cost.
In case of linking a measurement that includes a
factor that is different from 1 to a work item be very careful. If you type
anything in the ‘Formula’ field even the letter R (Result), the factor is not taken into
account.
Attention! The expression in the ‘Formula’
refers to each submeasurement separately as well as to the letters R (Result), L (Length), A (Area). e.g if you type
the expression R+1 in the ‘Formula’ field and then continue the measurement
twice thus creating three submeasurements (See Drawings/Continue
measurement), the final result will be (R1+1)+(R2+1)+(R3+1) =R+3 instead of R+1 where R1,R2,R3
symbolize the results of the submeasurements and the letter R their sum. This is
needed since the values of custom measurements parameters that are used in
formulas may be different per sub-measurement (eg. height).