-73.6% is the change from 909 to 240
Calculation steps:
[( 240 - 909 ) ÷ 909] x 100 = -73.6%
Formula
Percentage change = [(240 - 909) / 909] x 100
Subtract the new number by the original number
240 - 909 = -669
-669 ÷ 909 = -0.735973597359736
-0.735973597359736 x 100 = -73.6%