24.5% is the change from 400 to 498
Calculation steps:
[( 498 - 400 ) ÷ 400] x 100 = 24.5%
Formula
Percentage change = [(498 - 400) / 400] x 100
Subtract the new number by the original number
498 - 400 = 98
98 ÷ 400 = 0.245
0.245 x 100 = 24.5%
Example