Red Bull Price Premium = [(38% ÷ 33%) - 1]

Red Bull price premium = [(38% ÷ 33%) - 1] = 0.1515 × 100 = 15.2%
Monster price premium = [(18% ÷ 19%) - 1] = -0.0526 × 100 = (5.3%)
Rockstar price premium = [(7% ÷ 8%) - 1] = -0.1250 × 100 = (12.5%)
Other brands price premium = [(37% ÷ 40%) - 1] = -0.0750 × 100 = (7.5%)
-Price Premium Marketing Dashboard above shows the dollar and unit market shares for selected energy drinks.What is the price premium for Monster in 2009?

A) 12.1%
B) 0%
C) -5.0%
D) -5.6%
E) -11.1%