-43.82% is the change from 340 to 191
Calculation steps:
[( 191 - 340 ) ÷ 340] x 100 = -43.82%
Formula
Percentage change = [(191 - 340) / 340] x 100
Subtract the new number by the original number
191 - 340 = -149
-149 ÷ 340 = -0.43823529411764706
-0.43823529411764706 x 100 = -43.82%