100% is the change from 246 to 492
Calculation steps:
[( 492 - 246 ) ÷ 246] x 100 = 100%
Formula
Percentage change = [(492 - 246) / 246] x 100
Subtract the new number by the original number
492 - 246 = 246
246 ÷ 246 = 1
1 x 100 = 100%
Example