417.5% is the change from 80 to 414
Calculation steps:
[( 414 - 80 ) ÷ 80] x 100 = 417.5%
Formula
Percentage change = [(414 - 80) / 80] x 100
Subtract the new number by the original number
414 - 80 = 334
334 ÷ 80 = 4.175
4.175 x 100 = 417.5%
Example