-63.68% is the change from 223 to 81
Calculation steps:
[( 81 - 223 ) ÷ 223] x 100 = -63.68%
Formula
Percentage change = [(81 - 223) / 223] x 100
Subtract the new number by the original number
81 - 223 = -142
-142 ÷ 223 = -0.6367713004484304
-0.6367713004484304 x 100 = -63.68%