Please provide the solutions.

Walker Consulting specializes in helping small companies protect their assets from employee theft. Walker has provided the following data relating to its current year: Revenues Gross margin Profit before taxes $850,000 $560,000 $300,000 Walker's period costs are made up 30 percent marketing costs and 70 percent administrative costs. Required: a. Complete a GAAP income statement. b. What is the firm's cost to provide service? C. What are its general and administrative costs