248.84% is the change from 258 to 900
Calculation steps:
[( 900 - 258 ) ÷ 258] x 100 = 248.84%
Formula
Percentage change = [(900 - 258) / 258] x 100
Subtract the new number by the original number
900 - 258 = 642
642 ÷ 258 = 2.488372093023256
2.488372093023256 x 100 = 248.84%