-32.78% is the change from 909 to 611
Calculation steps:
[( 611 - 909 ) ÷ 909] x 100 = -32.78%
Formula
Percentage change = [(611 - 909) / 909] x 100
Subtract the new number by the original number
611 - 909 = -298
-298 ÷ 909 = -0.3278327832783278
-0.3278327832783278 x 100 = -32.78%