150% is the change from 250 to 625
Calculation steps:
[( 625 - 250 ) ÷ 250] x 100 = 150%
Formula
Percentage change = [(625 - 250) / 250] x 100
Subtract the new number by the original number
625 - 250 = 375
375 ÷ 250 = 1.5
1.5 x 100 = 150%
Example