-9.47% is the change from 243 to 220
Calculation steps:
[( 220 - 243 ) ÷ 243] x 100 = -9.47%
Formula
Percentage change = [(220 - 243) / 243] x 100
Subtract the new number by the original number
220 - 243 = -23
-23 ÷ 243 = -0.09465020576131687
-0.09465020576131687 x 100 = -9.47%