-78.88% is the change from 909 to 192
Calculation steps:
[( 192 - 909 ) ÷ 909] x 100 = -78.88%
Formula
Percentage change = [(192 - 909) / 909] x 100
Subtract the new number by the original number
192 - 909 = -717
-717 ÷ 909 = -0.7887788778877888
-0.7887788778877888 x 100 = -78.88%