979.01% is the change from 81 to 874
Calculation steps:
[( 874 - 81 ) ÷ 81] x 100 = 979.01%
Formula
Percentage change = [(874 - 81) / 81] x 100
Subtract the new number by the original number
874 - 81 = 793
793 ÷ 81 = 9.790123456790123
9.790123456790123 x 100 = 979.01%