-79.21% is the change from 909 to 189
Calculation steps:
[( 189 - 909 ) ÷ 909] x 100 = -79.21%
Formula
Percentage change = [(189 - 909) / 909] x 100
Subtract the new number by the original number
189 - 909 = -720
-720 ÷ 909 = -0.7920792079207921
-0.7920792079207921 x 100 = -79.21%