40.8% is the change from 250 to 352
Calculation steps:
[( 352 - 250 ) ÷ 250] x 100 = 40.8%
Formula
Percentage change = [(352 - 250) / 250] x 100
Subtract the new number by the original number
352 - 250 = 102
102 ÷ 250 = 0.408
0.408 x 100 = 40.8%
Example