-54.58% is the change from 491 to 223
Calculation steps:
[( 223 - 491 ) ÷ 491] x 100 = -54.58%
Formula
Percentage change = [(223 - 491) / 491] x 100
Subtract the new number by the original number
223 - 491 = -268
-268 ÷ 491 = -0.5458248472505092
-0.5458248472505092 x 100 = -54.58%