Can i please have it with the calculation $?$ I appreciat it $.$

Sam came to you wanting to make your life easier. He offers to supply Gizmos to you for a yearly fee of $$94,000$ and will only charge you $$29\mathrm{.}47$ per Gizmo $($delivered$).$ That sounds like it MIGHT be interesting since you employ three $(3)$ employees in your Gizmo line and each one is paid $$30,000$ annually. You figure it costs your firm $$37\mathrm{.}88$ in materials per Gizmo to produce. You made $450$ Gizmos last year. Answer the following four questions $($a through d$)$ and show your answer and your work in the space below the question. You may either hand$-$write your work and submit a scan of the handwritten document or you may enter your work directly onto this Word document and then submit the Word file or use Excel, but show all work. a$.$ What was the total cost you experienced last year $(25\%)$ b$.$ What would the cost have been if you would have used Sams firm last year? $(25\%)$ c$.$ What is the indifference quantity between the two alternatives? $(25\%)$ d$.$ If you expect the Gizmo demand to be $500$ orders next year, should you use Sams firm? In doing this, how much would he save over the alternative? $(25\%)$