-73.38% is the change from 909 to 242
Calculation steps:
[( 242 - 909 ) ÷ 909] x 100 = -73.38%
Formula
Percentage change = [(242 - 909) / 909] x 100
Subtract the new number by the original number
242 - 909 = -667
-667 ÷ 909 = -0.7337733773377337
-0.7337733773377337 x 100 = -73.38%