-66.56% is the change from 326 to 109
Calculation steps:
[( 109 - 326 ) ÷ 326] x 100 = -66.56%
Formula
Percentage change = [(109 - 326) / 326] x 100
Subtract the new number by the original number
109 - 326 = -217
-217 ÷ 326 = -0.6656441717791411
-0.6656441717791411 x 100 = -66.56%