287.59% is the change from 137 to 531
Calculation steps:
[( 531 - 137 ) ÷ 137] x 100 = 287.59%
Formula
Percentage change = [(531 - 137) / 137] x 100
Subtract the new number by the original number
531 - 137 = 394
394 ÷ 137 = 2.875912408759124
2.875912408759124 x 100 = 287.59%