250% is the change from 258 to 903
Calculation steps:
[( 903 - 258 ) ÷ 258] x 100 = 250%
Formula
Percentage change = [(903 - 258) / 258] x 100
Subtract the new number by the original number
903 - 258 = 645
645 ÷ 258 = 2.5
2.5 x 100 = 250%
Example