-39.26% is the change from 326 to 198
Calculation steps:
[( 198 - 326 ) ÷ 326] x 100 = -39.26%
Formula
Percentage change = [(198 - 326) / 326] x 100
Subtract the new number by the original number
198 - 326 = -128
-128 ÷ 326 = -0.39263803680981596
-0.39263803680981596 x 100 = -39.26%