Comparing a Day to Its Period Average
Learn how to use the vs-period-average comparison badge in the AskBiz Day Detail panel to understand whether a day was above or below normal for the selected range.
Key Takeaways
- The vs-period-average badge compares a single day's net to the average net across the active range (7D, 30D, or 90D).
- A positive percentage means this day outperformed the period average; a negative means it underperformed.
- Changing the chart range changes the period average, so the same day can appear differently across views.
What Is the Period Average Comparison
The period average comparison is a badge displayed in the Day Detail panel next to or below the Net figure. It shows how the selected day's net cash flow compares to the average net cash flow across all days in the currently selected chart range. For example, if the 30D range is active and the average daily net across the last 30 days is negative $200, a day with negative $50 net would show a badge reading something like '+75% vs period avg' — indicating the day was 75 percent better than average. A day with negative $400 net would show '-100% vs period avg'.
How the Period Average Is Calculated
The period average is the sum of all daily net figures within the active range divided by the number of days in that range. Step 1: If 30D is the active range, AskBiz sums the net cash flow for each of the last 30 days. Step 2: It divides by 30. Step 3: The result is the period average net cash per day. Step 4: The selected day's net is then compared to this average to produce the percentage badge. Days with no data (zero entries) are included in the average as zero values, which means sparse data can skew the average downward.
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Start for free →Why the Range Matters
Because the period average changes with the selected range, the same day can show different comparison badges depending on whether you are in 7D, 30D, or 90D view. Step 1: Click a bar in 7D view and note the vs-period-avg badge value. Step 2: Switch to 30D view and click the same bar. The badge value may be different because the average is now calculated over 30 days instead of 7. Step 3: Switch to 90D and repeat. This flexibility lets you benchmark a day against short-term or long-term norms depending on your analysis goal.
Interpreting the Badge Practically
Use the vs-period-average badge to quickly categorise days as routine, good, or bad relative to your business's recent norm. A badge showing plus 50 percent or more indicates an exceptionally good day — investigate what drove it (a large customer payment, a low-expense day, or both). A badge showing minus 50 percent or more indicates a significantly worse-than-normal day — check the Channel Proxy section of Day Detail to identify the high outflow category. A badge near zero (plus or minus 10 to 15 percent) indicates a day close to normal. These categories help you focus your attention on meaningful outliers rather than normal variation.
Combining Period Average with Other Comparisons
Step 1: When a day shows a poor vs-period-average badge, also check the vs-7-day-rolling-average badge in the same Day Detail panel. Step 2: If both badges are negative, the day was bad relative to both short-term and medium-term norms — a reliable signal of an outlier. Step 3: If only the period-average badge is negative but the 7-day rolling average badge is positive or neutral, the day may be normal for the recent week but below the longer-period average — possibly indicating a short-term improvement in performance. Step 4: Use this combination to distinguish between genuine outliers and days that are bad only relative to a strong recent run.