-81.22% is the change from 490 to 92
Calculation steps:
[( 92 - 490 ) ÷ 490] x 100 = -81.22%
Formula
Percentage change = [(92 - 490) / 490] x 100
Subtract the new number by the original number
92 - 490 = -398
-398 ÷ 490 = -0.8122448979591836
-0.8122448979591836 x 100 = -81.22%