797.18% is the change from 71 to 637
Calculation steps:
[( 637 - 71 ) ÷ 71] x 100 = 797.18%
Formula
Percentage change = [(637 - 71) / 71] x 100
Subtract the new number by the original number
637 - 71 = 566
566 ÷ 71 = 7.971830985915493
7.971830985915493 x 100 = 797.18%