-68.5% is the change from 346 to 109
Calculation steps:
[( 109 - 346 ) ÷ 346] x 100 = -68.5%
Formula
Percentage change = [(109 - 346) / 346] x 100
Subtract the new number by the original number
109 - 346 = -237
-237 ÷ 346 = -0.684971098265896
-0.684971098265896 x 100 = -68.5%