What IF parameter

[Plump_Lil_Monk]

Hi
No need some help with a what if parameter.
Scenario: 

Users show which activities they have been doing as well as, how many hours spent on each activity, which pay centre the hours will be placed against, and if the hours benefit either the client or the company they work for.

Table 1 shows the users and a breakdown of the hours they have worked and to who the hours benefit.

Table 2 shows a breakdown of the activities categories that have been booked and benefit the company along with the total hours booked to each category by all employees.

Card Percentage of all of the hours that benefit the company.

Requirements

I need to be able to show what would happen if IT and Comms booking activity is increased by a certain amount to contract (let's say 10), how would that affect the overall percentage displayed in the % card (what would it increase by)?

I believe that a What-If Parameter is required but I am unsure how to create a measure that would affect only one 'Booking Activity' at a time.

Can this be done?

Any help would be greatly appreciated. 

[lbendlin · Accepted solution]

Create separate What-If parameters for each of the booking activity types.