Average Percentage Calculator
Calculate the average of multiple percentages with optional sample size weighting
Calculate Average Percentage
Check this if your percentages represent different group sizes
Entry #1
Entry #2
Average Percentage Result
Step-by-step Calculation
Formula: (0% + 0%) / 2
Calculation: 0.0 / 2 = 0.00%
Method: Simple arithmetic mean
Analysis
Example Calculation
Survey Results Example
Scenario: Customer satisfaction across different store locations
Store A: 85% satisfaction (200 customers)
Store B: 78% satisfaction (150 customers)
Store C: 92% satisfaction (100 customers)
Weighted Average Calculation
Average = (85% × 200 + 78% × 150 + 92% × 100) / (200 + 150 + 100)
Average = (17,000 + 11,700 + 9,200) / 450
Average = 84.22%
Note: This gives more weight to stores with more customers
Formula Guide
Simple Average
Use when all percentages have equal importance
Weighted Average
Use when percentages represent different sample sizes
When to Use Each Method
Simple Average
Equal importance for all percentages
Example: Test scores, ratings
Weighted Average
Different sample sizes or importance
Example: Survey results, sales data
Quick Tips
Always consider the context of your percentages
Use weighted average for different group sizes
Simple average treats all entries equally
Larger samples get more weight in weighted average
Understanding Average Percentage
What is Average Percentage?
An average percentage is the mean value of multiple percentage values. The calculation method depends on whether the percentages represent equal or different sample sizes.
Simple vs. Weighted Average
- •Simple: All percentages have equal weight
- •Weighted: Percentages weighted by sample size
- •Context matters: Choose based on your data
Real-World Applications
Survey Analysis
Combining satisfaction rates from different customer groups
Academic Grades
Calculating overall class performance from test scores
Business Metrics
Averaging conversion rates across different channels
Mathematical Formula
Simple Average Formula
Average = (P₁ + P₂ + P₃ + ... + Pₙ) / n
Where P₁, P₂, etc. are the individual percentages and n is the number of values.
Weighted Average Formula
Average = (P₁×w₁ + P₂×w₂ + ... + Pₙ×wₙ) / (w₁ + w₂ + ... + wₙ)
Where w₁, w₂, etc. are the weights (sample sizes) for each percentage.