Unfortunately the number isn't always out of 100 each month. I was using that to simplify the example so that the number would equal the percentage in the example but in reality the numbers are basically random. If I knew the total for the year was going to be out of 1200 then yes it would be...
I have a maths problem that has confused me.
Each month I have a performance score. Month by month those scores are added together to make a cumulative score of the year to date.
There is a target (percentage) that must be achieved by the year end. Based on the current cumulative result I need...