-65.53% is the change from 647 to 223
Calculation steps:
[( 223 - 647 ) ÷ 647] x 100 = -65.53%
Formula
Percentage change = [(223 - 647) / 647] x 100
Subtract the new number by the original number
223 - 647 = -424
-424 ÷ 647 = -0.6553323029366306
-0.6553323029366306 x 100 = -65.53%