-64.21% is the change from 623 to 223
Calculation steps:
[( 223 - 623 ) ÷ 623] x 100 = -64.21%
Formula
Percentage change = [(223 - 623) / 623] x 100
Subtract the new number by the original number
223 - 623 = -400
-400 ÷ 623 = -0.6420545746388443
-0.6420545746388443 x 100 = -64.21%