-66.86% is the change from 673 to 223
Calculation steps:
[( 223 - 673 ) ÷ 673] x 100 = -66.86%
Formula
Percentage change = [(223 - 673) / 673] x 100
Subtract the new number by the original number
223 - 673 = -450
-450 ÷ 673 = -0.6686478454680534
-0.6686478454680534 x 100 = -66.86%