How to determine right hosting price when reselling cpanel server?

Hi,

how do you count your expenses and income for running a server for hosting reselling, how to determine right shared webhosting price when reselling server resources?

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I did this example calculation:

Example, server with 2TB harddisk, Xeon E3 8x3,4ghz, 32GB RAM, 200mbit/s line, max. 5000GB monthly transfer, 10 IPs - \$230 price + \$200 profit would be good right?

Average client:
2 GB disk (1950/2=975 clients per server)
10GB data transfer/mo. (5000/10=500 clients per server)
32MB RAM at a time (30GB/32MB=937.5 clients per server)

i need to require \$0.2 per GB of disk space when 2TB disk server cost \$200 + \$200 profit (400 / 1 950 000 ) we count 50GB is used for OS partition and similar.

500 clients x \$0.4 (price if every client has 2GB disk) = \$200 income - covers server costs, but we dont make money for our work. We need \$200 profit even when server is 50% full.
500 clients x \$0,8 = \$400 income - thats like when server is 100% full (500 clients)
250 clients x \$0,8 = \$200 income - 50% full server, every client paying \$0,8 per package
250 clients x \$1,6 = \$400 income, \$200 paid for server, \$50 paid for cpanel,cloudlinux, \$15 paid for billing system WHMCS

\$135 profit remaining (2700czk)

If one needs to hire a support staff, do regular offserver backups, price goes way higher, one may need to require

even three times more money. From:

2 GB disk
10GB data transfer/mo.
32MB RAM at a time
250 clients x \$1,6 = \$400 income, \$135 profit

to:

2 GB disk
10GB data transfer/mo.
32MB RAM at a time
250 clients x \$4,8 = \$1200 income, \$935 profit (200+65 server only expenses), then we need to substract expenses for offserver backups, support staff, office equipment, water, electricity