432.1% is the change from 81 to 431
Calculation steps:
[( 431 - 81 ) ÷ 81] x 100 = 432.1%
Formula
Percentage change = [(431 - 81) / 81] x 100
Subtract the new number by the original number
431 - 81 = 350
350 ÷ 81 = 4.320987654320987
4.320987654320987 x 100 = 432.1%