100% is the change from 498 to 996
Calculation steps:
[( 996 - 498 ) ÷ 498] x 100 = 100%
Formula
Percentage change = [(996 - 498) / 498] x 100
Subtract the new number by the original number
996 - 498 = 498
498 ÷ 498 = 1
1 x 100 = 100%
Example