cost estimation in excel spreadsheet

Sheet1

Projected Revenues
# People	10	20	30	40	50	60
Price/Person	$600	$600	$600	$600	$600	$600
Total	$6,000	$12,000	$18,000	$24,000	$30,000	$36,000
Projected Expenses	$500	$500	$500	$500	$500	$500
Room fee	$400	$400	$400	$400	$400	$400
Registration Setup	$300	$300	$300	$300	$300	$300
Postcard Design	$50	$100	$150	$200	$250	$300
Registration Variable cost	$240	$480	$720	$960	$1,200	$1,440
Credit card Processing Variable cost	$2,000	$2,000	$2,000	$2,000	$2,000	$2,000
Postcard Variable Cost	$1,000	$1,000	$1,000	$1,000	$1,000	$1,000
Postcard mailing & Postage	$250	$500	$750	$1,000	$1,250	$1,500
Beverages and Lunch	$300	$600	$900	$1,200	$1,500	$1,800
Class Handouts	$5,040	$5,880	$6,720	$7,560	$8,400	$9,240
Total
Projected Profits	$960	$6,120	$11,280	$16,440	$21,600	$26,760
Value of Personal time/hour	$6.40	$40.80	$75.20	$109.60	$144	$178.40
Variable Costs
Registration	$50	$100	$150	$200	$250	$300
Variable Costs
Registration	$50	$100	$150	$200	$250	$300
Credit Card Processing	$240	$480	$720	$960	$1,200	$1,440
Postcards	$2,000	$2,000	$2,000	$2,000	$2,000	$2,000
Postcards mailing and postage	$1,000	$1,000	$1,000	$1,000	$1,000	$1,000
Beverages and lunch	$250	$500	$750	$1,000	$1,250	$1,500
Class handouts	$300	$600	$900	$1,200	$1,500	$1,800
Unit Costs and other info
#postcards made	$5,000	$5,000	$5,000	$5,000	$5,000	$5,000
#postcards mailed	$4,000	$4,000	$4,000	$4,000	$4,000	$4,000
Registartion/Person	$5	$5	$5	$5	$5	$5
Credit card fee/person (4%*fee ($600)	$24	$24	$24	$24	$24	$24
Postcards (each)	$0.40	$0.40	$0.40	$0.40	$0.40	$0.40
Postcard mailing and postage (each)	$0.25	$0.25	$0.25	$0.25	$0.25	$0.25
Beverages and lunch/person	$25	$25	$25	$25	$25	$25
Class handouts/person	$30	$30	$30	$30	$30	$30
Person hours spents	150	150	150	150	150	150