956.25% is the change from 80 to 845
Calculation steps:
[( 845 - 80 ) ÷ 80] x 100 = 956.25%
Formula
Percentage change = [(845 - 80) / 80] x 100
Subtract the new number by the original number
845 - 80 = 765
765 ÷ 80 = 9.5625
9.5625 x 100 = 956.25%
Example