585.53% is the change from 76 to 521
Calculation steps:
[( 521 - 76 ) ÷ 76] x 100 = 585.53%
Formula
Percentage change = [(521 - 76) / 76] x 100
Subtract the new number by the original number
521 - 76 = 445
445 ÷ 76 = 5.855263157894737
5.855263157894737 x 100 = 585.53%