-91.03% is the change from 223 to 20
Calculation steps:
[( 20 - 223 ) ÷ 223] x 100 = -91.03%
Formula
Percentage change = [(20 - 223) / 223] x 100
Subtract the new number by the original number
20 - 223 = -203
-203 ÷ 223 = -0.9103139013452914
-0.9103139013452914 x 100 = -91.03%