521.25% is the change from 80 to 497
Calculation steps:
[( 497 - 80 ) ÷ 80] x 100 = 521.25%
Formula
Percentage change = [(497 - 80) / 80] x 100
Subtract the new number by the original number
497 - 80 = 417
417 ÷ 80 = 5.2125
5.2125 x 100 = 521.25%
Example