835.71% is the change from 70 to 655
Calculation steps:
[( 655 - 70 ) ÷ 70] x 100 = 835.71%
Formula
Percentage change = [(655 - 70) / 70] x 100
Subtract the new number by the original number
655 - 70 = 585
585 ÷ 70 = 8.357142857142858
8.357142857142858 x 100 = 835.71%