52% is the change from 250 to 380
Calculation steps:
[( 380 - 250 ) ÷ 250] x 100 = 52%
Formula
Percentage change = [(380 - 250) / 250] x 100
Subtract the new number by the original number
380 - 250 = 130
130 ÷ 250 = 0.52
0.52 x 100 = 52%
Example