This question goes back to the cost of retaining customers versus acquiring new customers. It sounds more like a problem solving math question but it's actually pretty straight forward. To answer this question, explain your knowledge of customer retention and acquisition. You can share what you have learned from your clients and how you prioritize them in order to maintain relationships and give them the results they need.
"I believe that customer retention and investing more in your customers should take precedence over increasing prices. You could lose your customers in the meantime, which will end up costing the company more in the long run. I do believe it is more beneficial to increase your customer base, every time."