1086.42% is the change from 81 to 961
Calculation steps:
[( 961 - 81 ) ÷ 81] x 100 = 1086.42%
Formula
Percentage change = [(961 - 81) / 81] x 100
Subtract the new number by the original number
961 - 81 = 880
880 ÷ 81 = 10.864197530864198
10.864197530864198 x 100 = 1086.42%