-40.12% is the change from 339 to 203
Calculation steps:
[( 203 - 339 ) ÷ 339] x 100 = -40.12%
Formula
Percentage change = [(203 - 339) / 339] x 100
Subtract the new number by the original number
203 - 339 = -136
-136 ÷ 339 = -0.40117994100294985
-0.40117994100294985 x 100 = -40.12%