If I know the ending amt o assts, and liabilities, the begininning amt of owner equity, the withdral for the period and the expenses for the period, how do I get the revenue

Start with finding ending Owners Equity, which is ending Assets minus ending Liabilities.

Now you have to account for the change in Owners Equity. Take the ending Owners Equity plus the withdrawals plus expenses minus beginning Owners Equity equals Revenues.