PLEASE PROVIDE FORMULA!

Norton Manufacturing expects to produce 2,700 units in January and 3,500 units in February. Norton budgets $50 per unit for direct materials. Indirect materials are insignificant and not considered for budgeting purposes. The balance in the Raw Materials Inventory account (all direct materials) on January 1 is $39,050. Norton desires the ending balance in Raw Materials Inventory to be 1010% of the next month's direct materials needed for production. Desired ending balance for February is $52,000. What is the cost of budgeted purchases of direct materials needed for January?

A. $152,500

B. $113,450

C. $109,450

D. $135,000