-21.79% is the change from 491 to 384
Calculation steps:
[( 384 - 491 ) ÷ 491] x 100 = -21.79%
Formula
Percentage change = [(384 - 491) / 491] x 100
Subtract the new number by the original number
384 - 491 = -107
-107 ÷ 491 = -0.21792260692464357
-0.21792260692464357 x 100 = -21.79%