-50.58% is the change from 344 to 170
Calculation steps:
[( 170 - 344 ) ÷ 344] x 100 = -50.58%
Formula
Percentage change = [(170 - 344) / 344] x 100
Subtract the new number by the original number
170 - 344 = -174
-174 ÷ 344 = -0.5058139534883721
-0.5058139534883721 x 100 = -50.58%