-97.08% is the change from 240 to 7
Calculation steps:
[( 7 - 240 ) ÷ 240] x 100 = -97.08%
Formula
Percentage change = [(7 - 240) / 240] x 100
Subtract the new number by the original number
7 - 240 = -233
-233 ÷ 240 = -0.9708333333333333
-0.9708333333333333 x 100 = -97.08%