285.6% is the change from 250 to 964
Calculation steps:
[( 964 - 250 ) ÷ 250] x 100 = 285.6%
Formula
Percentage change = [(964 - 250) / 250] x 100
Subtract the new number by the original number
964 - 250 = 714
714 ÷ 250 = 2.856
2.856 x 100 = 285.6%
Example