618.52% is the change from 135 to 970
Calculation steps:
[( 970 - 135 ) ÷ 135] x 100 = 618.52%
Formula
Percentage change = [(970 - 135) / 135] x 100
Subtract the new number by the original number
970 - 135 = 835
835 ÷ 135 = 6.185185185185185
6.185185185185185 x 100 = 618.52%