436.25% is the change from 80 to 429
Calculation steps:
[( 429 - 80 ) ÷ 80] x 100 = 436.25%
Formula
Percentage change = [(429 - 80) / 80] x 100
Subtract the new number by the original number
429 - 80 = 349
349 ÷ 80 = 4.3625
4.3625 x 100 = 436.25%
Example