-97.56% is the change from 492 to 12
Calculation steps:
[( 12 - 492 ) ÷ 492] x 100 = -97.56%
Formula
Percentage change = [(12 - 492) / 492] x 100
Subtract the new number by the original number
12 - 492 = -480
-480 ÷ 492 = -0.975609756097561
-0.975609756097561 x 100 = -97.56%