853.09% is the change from 81 to 772
Calculation steps:
[( 772 - 81 ) ÷ 81] x 100 = 853.09%
Formula
Percentage change = [(772 - 81) / 81] x 100
Subtract the new number by the original number
772 - 81 = 691
691 ÷ 81 = 8.530864197530864
8.530864197530864 x 100 = 853.09%