811.27% is the change from 71 to 647
Calculation steps:
[( 647 - 71 ) ÷ 71] x 100 = 811.27%
Formula
Percentage change = [(647 - 71) / 71] x 100
Subtract the new number by the original number
647 - 71 = 576
576 ÷ 71 = 8.112676056338028
8.112676056338028 x 100 = 811.27%