1285.71% is the change from 70 to 970
Calculation steps:
[( 970 - 70 ) ÷ 70] x 100 = 1285.71%
Formula
Percentage change = [(970 - 70) / 70] x 100
Subtract the new number by the original number
970 - 70 = 900
900 ÷ 70 = 12.857142857142858
12.857142857142858 x 100 = 1285.71%