52.15% is the change from 349 to 531
Calculation steps:
[( 531 - 349 ) ÷ 349] x 100 = 52.15%
Formula
Percentage change = [(531 - 349) / 349] x 100
Subtract the new number by the original number
531 - 349 = 182
182 ÷ 349 = 0.5214899713467048
0.5214899713467048 x 100 = 52.15%