53.28% is the change from 137 to 210
Calculation steps:
[( 210 - 137 ) ÷ 137] x 100 = 53.28%
Formula
Percentage change = [(210 - 137) / 137] x 100
Subtract the new number by the original number
210 - 137 = 73
73 ÷ 137 = 0.5328467153284672
0.5328467153284672 x 100 = 53.28%