-56.1% is the change from 508 to 223
Calculation steps:
[( 223 - 508 ) ÷ 508] x 100 = -56.1%
Formula
Percentage change = [(223 - 508) / 508] x 100
Subtract the new number by the original number
223 - 508 = -285
-285 ÷ 508 = -0.5610236220472441
-0.5610236220472441 x 100 = -56.1%