Calculating Profit Margin

[punta]

this might seem like a dumb question and it probably is but i just want to double check with you guys(never was good at maths in school).

to calculate my profit margin for betting would it be total turnover / profit(or loss)

e.g. 800/60 = 13.33%

thanks in advance for your help

[wesmip1]

No thats wrong...

Its 60/800 = 7.5%

Good Luck