553.75% is the change from 80 to 523
Calculation steps:
[( 523 - 80 ) ÷ 80] x 100 = 553.75%
Formula
Percentage change = [(523 - 80) / 80] x 100
Subtract the new number by the original number
523 - 80 = 443
443 ÷ 80 = 5.5375
5.5375 x 100 = 553.75%
Example