-12.08% is the change from 240 to 211
Calculation steps:
[( 211 - 240 ) ÷ 240] x 100 = -12.08%
Formula
Percentage change = [(211 - 240) / 240] x 100
Subtract the new number by the original number
211 - 240 = -29
-29 ÷ 240 = -0.12083333333333333
-0.12083333333333333 x 100 = -12.08%