51.28% is the change from 351 to 531
Calculation steps:
[( 531 - 351 ) ÷ 351] x 100 = 51.28%
Formula
Percentage change = [(531 - 351) / 351] x 100
Subtract the new number by the original number
531 - 351 = 180
180 ÷ 351 = 0.5128205128205128
0.5128205128205128 x 100 = 51.28%