821.88% is the change from 64 to 590
Calculation steps:
[( 590 - 64 ) ÷ 64] x 100 = 821.88%
Formula
Percentage change = [(590 - 64) / 64] x 100
Subtract the new number by the original number
590 - 64 = 526
526 ÷ 64 = 8.21875
8.21875 x 100 = 821.88%
Example