773.24% is the change from 71 to 620
Calculation steps:
[( 620 - 71 ) ÷ 71] x 100 = 773.24%
Formula
Percentage change = [(620 - 71) / 71] x 100
Subtract the new number by the original number
620 - 71 = 549
549 ÷ 71 = 7.732394366197183
7.732394366197183 x 100 = 773.24%