-51.62% is the change from 339 to 164
Calculation steps:
[( 164 - 339 ) ÷ 339] x 100 = -51.62%
Formula
Percentage change = [(164 - 339) / 339] x 100
Subtract the new number by the original number
164 - 339 = -175
-175 ÷ 339 = -0.5162241887905604
-0.5162241887905604 x 100 = -51.62%