-63.84% is the change from 224 to 81
Calculation steps:
[( 81 - 224 ) ÷ 224] x 100 = -63.84%
Formula
Percentage change = [(81 - 224) / 224] x 100
Subtract the new number by the original number
81 - 224 = -143
-143 ÷ 224 = -0.6383928571428571
-0.6383928571428571 x 100 = -63.84%