331% is the change from 100 to 431
Calculation steps:
[( 431 - 100 ) ÷ 100] x 100 = 331%
Formula
Percentage change = [(431 - 100) / 100] x 100
Subtract the new number by the original number
431 - 100 = 331
331 ÷ 100 = 3.31
3.31 x 100 = 331%
Example