Dear Vivian,
Based on your first Powerbi dashbaord, here is my comprehensive review, rating, and actionable feedback for corrections.
Firstly, always use this Windows shortcut to get a clean screenshot to publish your work online.
1. Window+G
2. Fn+ Prt Sc
Overall, the dashboard is ok and will rate it a 6.5 / 10.
Reasons: It established a clear layout with structured KPI cards and separate visual sections.
However, there are several design, formatting, and data-modeling choices that can be refined to make it better.
Detailed Feedback & Corrections
1. KPI Cards & Formatting (Top Banner)
Fix the Title:
The title reads "SUPER PHONE SALES DATASET".
Datasets are what analysts connect to; dashboards are what end-users read. Change this to something more business-oriented, such as "Super Phone Sales Performance Dashboard".
Clean up "Count of Order ID"
Showing a raw count as 9889 looks unformatted.
Rename the field in the visual well to "Total Orders" and add a comma separator so it displays as 9,889.
Card Border Consistency: The third card ("Total Discount") is missing its right-side border or has a lighter border than the others. Ensure the border properties match across all 5 cards.
2. Title Text & Default Aggregations
Remove "Sum of...": Power BI automatically prefixes fields with "Sum of" or "Count of". It is a major tell of an unpolished dashboard.
Fix: Rename the titles manually in the formatting pane.
-Change "Sum of Sales by Category and Region" to "Sales by Category & Region".
Change "Sum of Sales by Year" to "Sales Trend by Year".
Change "Sum of Sales by Top 10 State" to "Top 10 States by Sales".
3. Chart Corrections & Visual Best Practices
"Sum of Sales by Category and Region" (Stacked Column Chart):
Currently, you have data labels turned on inside very small stacked segments. This makes numbers overlap, overflow, and become entirely unreadable.
Fix: Turn off data labels inside the bars, or switch this to a Clustered Column Chart if comparing the exact regional numbers side-by-side matters. Alternatively, keep the stack but rely on tooltips for the exact breakdown.
"Top 10 Best Selling Product City" (Stacked Column Chart):
This chart is heavily cluttered. There are far too many small stacked colour segments representing individual products/categories inside each city, making the legend massive, and the chart impossible to interpret at a glance.
Fix: If the goal is to show the top cities, use a simple, clean Horizontal Bar Chart showing sales by City without the complex colour stacking. Let a tooltip or a drill-through handle the product breakdown.
X-Axis Labels: The city names at the bottom are truncated and cut off. A horizontal bar chart will give the city names plenty of room to read left-to-right.
"Sum of Sales by Top 10 State" (Bar Chart):
Similar to the city chart, the X-axis labels (Washingt..., Pennsylva...) are cut off.
Fix: Turning this into a Horizontal Bar Chart will instantly fix the readability of the state names.
4. Slicer Section (Left Panel)
Whitespace & Alignment: The slicers on the left (Region, City, State, Order Date) have a lot of unused vertical space between them, while the charts on the right are a bit cramped.
Hierarchy: Consider leveraging Power BI’s hierarchical features or dropdowns to save space. Making City and State dropdowns instead of open lists will make the left panel look much cleaner.
Weldone on this, it is a god job.
Kind regards,
Ekanem.
Data Analyst & Powerbi dev.
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Simple lifestyle, slower pace, community-oriented, and not trying too hard to impress anybody.
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Remote realities. High cost of living. Strong community bonds. Extreme weather. You must be mentally prepared before relocating here.
Which one did I get right?
And which city did I miss?
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Japanese actor Hiroyuki Sanada spoke about the contradictions of human nature:
“Some people dream of having a swimming pool at home, while those who have one hardly ever use it. Those who have lost a loved one feel a profound sense of loss, while others often complain about their living relatives. Those without a partner long for one, while those who have one often don't appreciate it. The hungry would give anything for a meal, while the satiated complain about the taste of their food. Those without a car dream of owning one, while those who have a car are always looking for a better one.”
The key to happiness is gratitude: truly seeing and appreciating what we already have, and understanding that somewhere, someone would give anything for what we take for granted.