885.71% is the change from 70 to 690
Calculation steps:
[( 690 - 70 ) ÷ 70] x 100 = 885.71%
Formula
Percentage change = [(690 - 70) / 70] x 100
Subtract the new number by the original number
690 - 70 = 620
620 ÷ 70 = 8.857142857142858
8.857142857142858 x 100 = 885.71%