4050% is the change from 12 to 498
Calculation steps:
[( 498 - 12 ) ÷ 12] x 100 = 4050%
Formula
Percentage change = [(498 - 12) / 12] x 100
Subtract the new number by the original number
498 - 12 = 486
486 ÷ 12 = 40.5
40.5 x 100 = 4050%
Example