57.57% is the change from 337 to 531
Calculation steps:
[( 531 - 337 ) ÷ 337] x 100 = 57.57%
Formula
Percentage change = [(531 - 337) / 337] x 100
Subtract the new number by the original number
531 - 337 = 194
194 ÷ 337 = 0.5756676557863502
0.5756676557863502 x 100 = 57.57%