-64.88% is the change from 635 to 223
Calculation steps:
[( 223 - 635 ) ÷ 635] x 100 = -64.88%
Formula
Percentage change = [(223 - 635) / 635] x 100
Subtract the new number by the original number
223 - 635 = -412
-412 ÷ 635 = -0.6488188976377953
-0.6488188976377953 x 100 = -64.88%