You are running a coffee shop. A recent review shows the following change in your shop's gross profit margin. This is not something you had planned for. Of the factors below, which would best explain...

Extracted text: You are running a coffee shop. A recent review shows the following change in your shop's gross profit margin. This is not something you had planned for. Of the factors below, which would best explain this change in gross margins? Quarter Quarter Quarter Quaner 3 2 4 Gross Profit 37.7% 37.1% 36.9% 35.9% Margin The number of customers who took advantage of your daily special promotion increased a fair amount each quarter Your competitor increased the number of sales promotions during the time period O Your rent increased during this time period Your advertising was not effective during this time period You have had to hire new baristas during this time period