Ratios Yes - you do need to be able to: - define the ratios - comment on them and - calculate a variation on the ratio depending on the information given (for example, some ratios can be calculated based on sales or cost of sales). Best wishes Stuart PS I am out of the office teaching almost every working day until 11 September, so responses to further queries will be met with delay (although as you've asked so many this week, hopefully we have now resolved most of your issues ).