-91.07% is the change from 224 to 20
Calculation steps:
[( 20 - 224 ) ÷ 224] x 100 = -91.07%
Formula
Percentage change = [(20 - 224) / 224] x 100
Subtract the new number by the original number
20 - 224 = -204
-204 ÷ 224 = -0.9107142857142857
-0.9107142857142857 x 100 = -91.07%