807.81% is the change from 64 to 581
Calculation steps:
[( 581 - 64 ) ÷ 64] x 100 = 807.81%
Formula
Percentage change = [(581 - 64) / 64] x 100
Subtract the new number by the original number
581 - 64 = 517
517 ÷ 64 = 8.078125
8.078125 x 100 = 807.81%