-81.26% is the change from 491 to 92
Calculation steps:
[( 92 - 491 ) ÷ 491] x 100 = -81.26%
Formula
Percentage change = [(92 - 491) / 491] x 100
Subtract the new number by the original number
92 - 491 = -399
-399 ÷ 491 = -0.8126272912423625
-0.8126272912423625 x 100 = -81.26%