-8.64% is the change from 243 to 222
Calculation steps:
[( 222 - 243 ) ÷ 243] x 100 = -8.64%
Formula
Percentage change = [(222 - 243) / 243] x 100
Subtract the new number by the original number
222 - 243 = -21
-21 ÷ 243 = -0.08641975308641975
-0.08641975308641975 x 100 = -8.64%