-66.53% is the change from 496 to 166
Calculation steps:
[( 166 - 496 ) ÷ 496] x 100 = -66.53%
Formula
Percentage change = [(166 - 496) / 496] x 100
Subtract the new number by the original number
166 - 496 = -330
-330 ÷ 496 = -0.6653225806451613
-0.6653225806451613 x 100 = -66.53%