828.57% is the change from 77 to 715
Calculation steps:
[( 715 - 77 ) ÷ 77] x 100 = 828.57%
Formula
Percentage change = [(715 - 77) / 77] x 100
Subtract the new number by the original number
715 - 77 = 638
638 ÷ 77 = 8.285714285714286
8.285714285714286 x 100 = 828.57%