37.2% is the change from 371 to 509
Calculation steps:
[( 509 - 371 ) ÷ 371] x 100 = 37.2%
Formula
Percentage change = [(509 - 371) / 371] x 100
Subtract the new number by the original number
509 - 371 = 138
138 ÷ 371 = 0.3719676549865229
0.3719676549865229 x 100 = 37.2%