Sales Dashboard

Pre-Algebra · Axiom Academy

LESSON Reading a Sales Dashboard Bar charts, pie charts, and line graphs each answer a different question about the same numbers — once you know which is which, a dashboard reads like a story. Q4 ran from October to December. To see which month sold the most, plot each month's sales as a bar . The rule is simple: taller means more . Your eye compares heights instantly — no arithmetic needed. 2. Pie Charts Show Parts of a Whole That 156,400 came from four product categories. A pie chart answers a different question than a bar chart: not "how much?" but " what share of the total? " Each slice's size is its fraction of the whole, and the slices always add up to 100% . A category's slice = its sales as a fraction of total sales 62,500 . The biggest slice, just under half the pie. 48,900 . The second-largest share. 28,200 . Roughly a fifth of sales. 16,800 . The smallest slice of the four. Add the shares: . Every slice is accounted for — that's the signature of a pie chart. Laptops alone are nearly half of all revenue. 3. Line Graphs Show Trends Over Time Zoom into December, week by week. When the x-axis is time , a line graph is the right tool: connecting the points shows the direction the numbers are moving. A line that rises left-to-right is an upward trend . Each week's sales sit a little higher than the last: 8,800 → 10,200 → 11,600 → 12,200 → 12,600 . Together those five weeks add up to December's 55,400 .

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