72% is the change from 250 to 430
Calculation steps:
[( 430 - 250 ) ÷ 250] x 100 = 72%
Formula
Percentage change = [(430 - 250) / 250] x 100
Subtract the new number by the original number
430 - 250 = 180
180 ÷ 250 = 0.72
0.72 x 100 = 72%
Example