65.6% is the change from 250 to 414
Calculation steps:
[( 414 - 250 ) ÷ 250] x 100 = 65.6%
Formula
Percentage change = [(414 - 250) / 250] x 100
Subtract the new number by the original number
414 - 250 = 164
164 ÷ 250 = 0.656
0.656 x 100 = 65.6%
Example