828.4% is the change from 81 to 752
Calculation steps:
[( 752 - 81 ) ÷ 81] x 100 = 828.4%
Formula
Percentage change = [(752 - 81) / 81] x 100
Subtract the new number by the original number
752 - 81 = 671
671 ÷ 81 = 8.283950617283951
8.283950617283951 x 100 = 828.4%