-67.75% is the change from 338 to 109
Calculation steps:
[( 109 - 338 ) ÷ 338] x 100 = -67.75%
Formula
Percentage change = [(109 - 338) / 338] x 100
Subtract the new number by the original number
109 - 338 = -229
-229 ÷ 338 = -0.6775147928994083
-0.6775147928994083 x 100 = -67.75%