-15.88% is the change from 403 to 339
Calculation steps:
[( 339 - 403 ) ÷ 403] x 100 = -15.88%
Formula
Percentage change = [(339 - 403) / 403] x 100
Subtract the new number by the original number
339 - 403 = -64
-64 ÷ 403 = -0.1588089330024814
-0.1588089330024814 x 100 = -15.88%