-4.58% is the change from 240 to 229
Calculation steps:
[( 229 - 240 ) ÷ 240] x 100 = -4.58%
Formula
Percentage change = [(229 - 240) / 240] x 100
Subtract the new number by the original number
229 - 240 = -11
-11 ÷ 240 = -0.04583333333333333
-0.04583333333333333 x 100 = -4.58%