198% is the change from 250 to 745
Calculation steps:
[( 745 - 250 ) ÷ 250] x 100 = 198%
Formula
Percentage change = [(745 - 250) / 250] x 100
Subtract the new number by the original number
745 - 250 = 495
495 ÷ 250 = 1.98
1.98 x 100 = 198%
Example