1045% is the change from 40 to 458
Calculation steps:
[( 458 - 40 ) ÷ 40] x 100 = 1045%
Formula
Percentage change = [(458 - 40) / 40] x 100
Subtract the new number by the original number
458 - 40 = 418
418 ÷ 40 = 10.45
10.45 x 100 = 1045%
Example