-11.11% is the change from 243 to 216
Calculation steps:
[( 216 - 243 ) ÷ 243] x 100 = -11.11%
Formula
Percentage change = [(216 - 243) / 243] x 100
Subtract the new number by the original number
216 - 243 = -27
-27 ÷ 243 = -0.1111111111111111
-0.1111111111111111 x 100 = -11.11%