i need help

Use the information in the following table to compute each department's contribution to overhead (both in dollars and as a percent). (Round Contribution percent to 1 decimal place.) Sales Cost of goods sold Gross profit Total direct expenses Contribution to overhead Contribution percent of sales) Dept. A $ 58,000 36,540 21,460 5,700 Dept. B $ 188,000 97,760 90,240 48,820 Dept.C $ 78,000 41,340 36,660 9,146 Which department contributes the largest dollar amount to total overhead? Department A Department B Department Which department contributes the highest percent (as a percent of sales) to total overhead? Department A Department B Department C