The action that the retailer could take is that He or she can ask the supplier for an explanation for the price increases and then he can Keep raising retail price of the item(s) to compensate for the price increases from the supplier.
What brings an increase in gross profit margin?
A retailer can experience an increase in the sales volume and this is one that can lead to a reduction in the cost of goods sold based on the fixed manufacturing cost per unit is said to be smaller as production volume is getting bigger.
An increase in sales is known to be one that is followed by a decrease in cost of goods sold per unit that therefore leads to a higher gross profit margin.
Learn more about retailer from
https://brainly.com/question/25376778