-57.65% is the change from 340 to 144
Calculation steps:
[( 144 - 340 ) ÷ 340] x 100 = -57.65%
Formula
Percentage change = [(144 - 340) / 340] x 100
Subtract the new number by the original number
144 - 340 = -196
-196 ÷ 340 = -0.5764705882352941
-0.5764705882352941 x 100 = -57.65%