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Calculating Values using Accounting Ratios

Exam code: 7707
Written by: Ashika|Reviewed by: Caroline Carroll|Updated 2 July 2026

Calculating values using accounting ratios

Calculating values using accounting ratios

What information can I find using the margin?

  • The formula for margin is Gross profitRevenue×100{"fontFamily":"Times New Roman","fontSize":"18","autoformat":true,"toolbar":""}

    • This is given as a percentage

  • You can use this percentage to find missing values

Gross profit

Multiply the revenue by the percentage

Revenue

Divide the gross profit by the percentage

Cost of sales

Subtract the gross profit from the revenue

What information can I find using the mark-up?

  • The formula for mark-up is Gross profitCost of sales×100{"fontFamily":"Times New Roman","fontSize":"18","autoformat":true,"toolbar":""}

    • This is given as a percentage

  • You can use this percentage to find missing values

Gross profit

Multiply the cost of sales by the percentage

Cost of sales

Divide the gross profit by the percentage

Revenue

Add together the gross profit and the cost of sales

  • Revenue = Cost of sales + (Mark-up percentage × Cost of sales)

  • If you know the mark-up and the revenue then you can also find the cost of sales

    • Find the revenue as a percentage of the cost of sales

      • Add the mark-up to 100%

    • Divide the revenue by this percentage to find the cost of sales

What information can I find using the inventory turnover?

  • The formula for inventory turnover is Cost of salesAverage inventory{"fontFamily":"Times New Roman","fontSize":"18","autoformat":true,"toolbar":""}

    • This is given as a number of times

    • The formula for average inventory is Opening inventory+Closing inventory2{"fontFamily":"Times New Roman","fontSize":"18","autoformat":true,"toolbar":""}

  • You can use this rate of inventory turnover to find missing values

Cost of sales

Multiply the average inventory by the rate

Average inventory

Divide the cost of sales by the rate