49.58% is the change from 355 to 531
Calculation steps:
[( 531 - 355 ) ÷ 355] x 100 = 49.58%
Formula
Percentage change = [(531 - 355) / 355] x 100
Subtract the new number by the original number
531 - 355 = 176
176 ÷ 355 = 0.49577464788732395
0.49577464788732395 x 100 = 49.58%