4000% is the change from 12 to 492
Calculation steps:
[( 492 - 12 ) ÷ 12] x 100 = 4000%
Formula
Percentage change = [(492 - 12) / 12] x 100
Subtract the new number by the original number
492 - 12 = 480
480 ÷ 12 = 40
40 x 100 = 4000%
Example