549.35% is the change from 77 to 500
Calculation steps:
[( 500 - 77 ) ÷ 77] x 100 = 549.35%
Formula
Percentage change = [(500 - 77) / 77] x 100
Subtract the new number by the original number
500 - 77 = 423
423 ÷ 77 = 5.4935064935064934
5.4935064935064934 x 100 = 549.35%