SetPerc Command creates a dropdown box to select percentage from 0-100 which is used as a replacement of the normal input command.
Helps to avoid making mistakes with percentages when things are 0-1 not 0-100
this command is set to 0-1 but easily changed to suit by updating the lists.
Example of how to use
local maxBudget = CC_SetPerc('01D. Balance Budget', '80%', 'Budget & Safety')