Data is only powerful with context, it needs to be accurate and organised and you need to be clear on the necessities vs the niceties.
Know your numbers - Your Balance Sheet
Know your numbers - Your Profit and Loss Report
Understanding your numbers is critical if you want to control your business (instead of your business controlling you). Your Profit and Loss Report measures the overall efficiency of your entire business - enabling you to review your costs to improve your business’s profit and, ultimately, its value.