40.43% is the change from 371 to 521
Calculation steps:
[( 521 - 371 ) ÷ 371] x 100 = 40.43%
Formula
Percentage change = [(521 - 371) / 371] x 100
Subtract the new number by the original number
521 - 371 = 150
150 ÷ 371 = 0.40431266846361186
0.40431266846361186 x 100 = 40.43%