34.79% is the change from 388 to 523
Calculation steps:
[( 523 - 388 ) ÷ 388] x 100 = 34.79%
Formula
Percentage change = [(523 - 388) / 388] x 100
Subtract the new number by the original number
523 - 388 = 135
135 ÷ 388 = 0.3479381443298969
0.3479381443298969 x 100 = 34.79%