48.11% is the change from 291 to 431
Calculation steps:
[( 431 - 291 ) ÷ 291] x 100 = 48.11%
Formula
Percentage change = [(431 - 291) / 291] x 100
Subtract the new number by the original number
431 - 291 = 140
140 ÷ 291 = 0.48109965635738833
0.48109965635738833 x 100 = 48.11%