770.31% is the change from 64 to 557
Calculation steps:
[( 557 - 64 ) ÷ 64] x 100 = 770.31%
Formula
Percentage change = [(557 - 64) / 64] x 100
Subtract the new number by the original number
557 - 64 = 493
493 ÷ 64 = 7.703125
7.703125 x 100 = 770.31%