-66.37% is the change from 663 to 223
Calculation steps:
[( 223 - 663 ) ÷ 663] x 100 = -66.37%
Formula
Percentage change = [(223 - 663) / 663] x 100
Subtract the new number by the original number
223 - 663 = -440
-440 ÷ 663 = -0.6636500754147813
-0.6636500754147813 x 100 = -66.37%