438.75% is the change from 80 to 431
Calculation steps:
[( 431 - 80 ) ÷ 80] x 100 = 438.75%
Formula
Percentage change = [(431 - 80) / 80] x 100
Subtract the new number by the original number
431 - 80 = 351
351 ÷ 80 = 4.3875
4.3875 x 100 = 438.75%
Example