The first reply was spot on. I would add that cash flow forecasting is an absolutely critical thing to do and to get right.
Using the same format (income then all the outgoings) put the amounts in the exact day that the cash comes in or leaves.
Why is it critical? If for example you pay your wages on day 15 of the month, you need to make sure you have enough cash in the business to pay those wages by that date.
At the bottom of each column, add up the income/outgoings for the day, and add it to the amount you had from the previous day. Eg total tenner cash at end of previous day, income 15 outgoings 20 would mean that end of day 2 you have (15-20+10) 5 cash.
Future periods would be your estimate (called a forecast) and if you see any days where it's a negative, you need to act. The cash flow forecast give you the ability to act now, so that you don't get trapped into running out of money.
Previous periods would be actuals. After a few weeks/months you should be able to see a trend, which will inform your forecasts. eg if you consistently see income spikes on a Saturday, you can build that into your forecast.
Sorry this is so long. Cash flow issues (running out of money) are the biggest cause of startups failing. Profit is important, but cash is king :)