-53.1% is the change from 339 to 159
Calculation steps:
[( 159 - 339 ) ÷ 339] x 100 = -53.1%
Formula
Percentage change = [(159 - 339) / 339] x 100
Subtract the new number by the original number
159 - 339 = -180
-180 ÷ 339 = -0.5309734513274337
-0.5309734513274337 x 100 = -53.1%