3) please answer all

Contribultion marpin revio This information has been collected in the Microsoft Excel Online file. Open the spreadshett, perform the reguired analysis, and inpat vour answers in the question below. Open spreadsheet a. Coastai Company budoets sales of $1,230,000, fived costs of $91,300, and variable cests of $405,900. What is the contributicn margin ratio for Coastal Company? b. If the contribution margin rstie for Bushner company is 395 , sales were $699,000, and fixed costs were \$215,360, what nas the aperating income