-83.74% is the change from 492 to 80
Calculation steps:
[( 80 - 492 ) ÷ 492] x 100 = -83.74%
Formula
Percentage change = [(80 - 492) / 492] x 100
Subtract the new number by the original number
80 - 492 = -412
-412 ÷ 492 = -0.8373983739837398
-0.8373983739837398 x 100 = -83.74%