53.73% is the change from 201 to 309
Calculation steps:
[( 309 - 201 ) ÷ 201] x 100 = 53.73%
Formula
Percentage change = [(309 - 201) / 201] x 100
Subtract the new number by the original number
309 - 201 = 108
108 ÷ 201 = 0.5373134328358209
0.5373134328358209 x 100 = 53.73%