-40.71% is the change from 339 to 201
Calculation steps:
[( 201 - 339 ) ÷ 339] x 100 = -40.71%
Formula
Percentage change = [(201 - 339) / 339] x 100
Subtract the new number by the original number
201 - 339 = -138
-138 ÷ 339 = -0.40707964601769914
-0.40707964601769914 x 100 = -40.71%