38% is the change from 250 to 345
Calculation steps:
[( 345 - 250 ) ÷ 250] x 100 = 38%
Formula
Percentage change = [(345 - 250) / 250] x 100
Subtract the new number by the original number
345 - 250 = 95
95 ÷ 250 = 0.38
0.38 x 100 = 38%
Example