49.2% is the change from 250 to 373
Calculation steps:
[( 373 - 250 ) ÷ 250] x 100 = 49.2%
Formula
Percentage change = [(373 - 250) / 250] x 100
Subtract the new number by the original number
373 - 250 = 123
123 ÷ 250 = 0.492
0.492 x 100 = 49.2%
Example