138.8% is the change from 250 to 597
Calculation steps:
[( 597 - 250 ) ÷ 250] x 100 = 138.8%
Formula
Percentage change = [(597 - 250) / 250] x 100
Subtract the new number by the original number
597 - 250 = 347
347 ÷ 250 = 1.388
1.388 x 100 = 138.8%
Example