Doggie Pals produces dog collars each month, and you have the following information:
January: 100,000 dog collars for total costs of $200,000
February: 82,000 dog collars for a total cost of $169,000
March: 80,000 dog collars for total cost of $170,000

Required
What are Doggie Pals total costs at 90,000 dog collars?