8700% is the change from 9 to 792
Calculation steps:
[( 792 - 9 ) ÷ 9] x 100 = 8700%
Formula
Percentage change = [(792 - 9) / 9] x 100
Subtract the new number by the original number
792 - 9 = 783
783 ÷ 9 = 87
87 x 100 = 8700%
Example