An Amazon FBA profitability calculator will help you simulate changes (e.g., price, costs, PPC spend) and determine the minimum price you need to charge to cover your costs.
Add a section below your main table or on a separate tab labeled Scenario Analysis.
| Variable        | Original Value | Scenario 1 | Scenario 2 | Scenario 3 |
|---------------------|--------------------|----------------|----------------|----------------|
| Selling Price ($)   | 30                 | 28             | 35             | 25             |
| Product Cost ($)    | 8                  | 8              | 8              | 9              |
| FBA Fee ($)         | 4.50               | 4.50           | 4.50           | 4.75           |
| Referral Fee (%)    | 15%                | 15%            | 15%            | 15%            |
| PPC Cost ($)        | 3                  | 2.50           | 3.50           | 4              |
Link Selling Price in the main calculator to the corresponding cell in the scenario table:
     excel
     =ScenarioAnalysis!B2
Repeat for Product Cost, FBA Fee, Referral Fee, and PPC Cost.
Add formulas to calculate the following outputs for each scenario:
[ {Net Profit} = {Selling Price} - ({Product Cost} + {FBA Fee} + {Referral Fee} + {PPC Cost}) ]
[ {Profit Margin (\%)} = \frac{{Net Profit}} / {{Selling Price}} * 100 ]
[ {ROI (\%)} = \frac{{Net Profit}} / {{Product Cost}} * 100 ]
| Scenario | Net Profit ($) | Profit Margin (%) | ROI (%) |
|--------------|--------------------|-----------------------|-------------|
| Scenario 1   | $8.50             | 30.36%               | 106.25%     |
| Scenario 2   | $14.00            | 40.00%               | 175.00%     |
| Scenario 3   | $6.75             | 27.00%               | 75.00%      |
Create a Clustered Bar Chart or Table Chart:
- X-Axis: Scenarios (Scenario 1, Scenario 2, etc.).
- Y-Axis: Net Profit or Profit Margin.  
To determine the breakeven price (minimum price to cover costs):
[ {Breakeven Price} = {Total Costs} ]
Where:
[
{Total Costs} = {Product Cost} + {FBA Fee} + {Referral Fee} + {PPC Cost}
]
Referral Fee is 15% of the Selling Price, so: [ {Referral Fee} = {Breakeven Price} * 0.15 ]
This makes the formula: [ {Breakeven Price} = \frac{{Product Cost} + {FBA Fee} + {PPC Cost}}{1 - {Referral Fee (\%)}} ]
[ {Breakeven Price} = \frac{8 + 4.50 + 3}{1 - 0.15} ] [ {Breakeven Price} = \frac{15.50}{0.85} = 18.24 ]
Your breakeven price is $18.24.
Add a column labeled Breakeven Price and enter the formula for automatic calculation:
Excel Formula for Breakeven Price:
excel
=(C2 + D2 + F2) / (1 - 0.15)
Where:
- C2 = Product Cost.
- D2 = FBA Fee.
- F2 = PPC Cost.  
Add conditional formatting:
- Highlight rows where Selling Price < Breakeven Price in red.
- This flags products that are losing money.
| Product        | Selling Price | Product Cost | FBA Fee | PPC Cost | Referral Fee | Total Costs | Net Profit | Profit Margin | ROI  | Breakeven Price |
|---------------------|-------------------|------------------|-------------|--------------|------------------|-----------------|----------------|-------------------|---------|---------------------|
| Stainless Bottle    | $30              | $8               | $4.50       | $3           | $4.50            | $20            | $10           | 33.33%           | 125%    | $18.24             |
| Yoga Mat            | $25              | $6               | $4.00       | $2           | $3.75            | $15.75         | $9.25         | 37.00%           | 154.17% | $18.53             |
| Phone Stand         | $15              | $4               | $3.50       | $1.50        | $2.25            | $11.25         | $3.75         | 25.00%           | 93.75%  | $13.24             |