Read it in three layers rather than jumping to the bottom. Revenue tells you what you sold. Gross profit, meaning revenue minus the direct cost of delivering the work, tells you whether the thing you sell is fundamentally worth selling, and it is the number most first year businesses under examine. Net profit, after the fixed costs of existing, tells you whether the business overall is viable at current volume. A business with weak gross margin has a pricing or delivery problem that growth will amplify rather than solve.
Review it monthly, which is frequent enough to catch a trend and infrequent enough to avoid reacting to noise. The useful comparison is against the same month last year once you have a year of history, and against the previous few months before that. A single month in isolation is heavily distorted by timing, since an annual insurance payment or a large invoice landing on either side of a month end moves it substantially.
The most valuable habit is looking at expenses as a percentage of revenue rather than as absolute figures. Costs rising is expected when revenue rises. Costs rising as a share of revenue is the thing worth investigating, and it is invisible when reading raw numbers month to month. Software, subcontractors, and advertising are the categories where this creeps most quietly.
Remember what it does not show, because this is where owners get caught. Profit is not cash. The statement counts revenue when it was earned rather than when it was collected, which means a profitable month can coincide with an empty account if customers have not paid. It also excludes loan principal repayments and owner draws, both of which consume cash without appearing as costs. That gap is why a business can be profitable and unable to make payroll.
If it looks wrong, the cause is usually categorisation rather than arithmetic. Transactions filed to the wrong account, personal spending mixed in, or an unreconciled bank feed will all distort it, and the fix is in the bookkeeping. A statement built on records nobody reconciled is a confident presentation of unreliable numbers.