487.5% is the change from 80 to 470
Calculation steps:
[( 470 - 80 ) ÷ 80] x 100 = 487.5%
Formula
Percentage change = [(470 - 80) / 80] x 100
Subtract the new number by the original number
470 - 80 = 390
390 ÷ 80 = 4.875
4.875 x 100 = 487.5%
Example