hey I need to know like all the formulas i'l need for my business studies exam but I can't find them and all the websites contradict each other. My book says 'rate of stock turnover = Cost of sales/Average stock', yet the website says 'Rate of stock turnover = average stock x 100/Cost of sales' Could someone please list the formulas i'l need. I'm talking about Current ratio, acid test, gross profit, net profit, Total revenue, creditors collection period, debtors collection period, rate of stock turnover and any more you can think of. I know it's a lot to ask but hey whats yahoo answers for. 