50.52% is the change from 291 to 438
Calculation steps:
[( 438 - 291 ) ÷ 291] x 100 = 50.52%
Formula
Percentage change = [(438 - 291) / 291] x 100
Subtract the new number by the original number
438 - 291 = 147
147 ÷ 291 = 0.5051546391752577
0.5051546391752577 x 100 = 50.52%