1023.17% is the change from 82 to 921
Calculation steps:
[( 921 - 82 ) ÷ 82] x 100 = 1023.17%
Formula
Percentage change = [(921 - 82) / 82] x 100
Subtract the new number by the original number
921 - 82 = 839
839 ÷ 82 = 10.231707317073171
10.231707317073171 x 100 = 1023.17%