Before you save a Pricing Trend or Rounding Off rule, the Preview Price Rounding-off calculator on the Price sub-tab lets you see exactly how your changes will affect a price — across every trend (% Increase, % Decrease, Value Increase, Value Decrease) and every rounding option (Whole number, End with 9, End with 0.99, etc.).

Steps

1. Go to Settings → Product Settings → Price.
2. At the top of the panel, find Preview Price Rounding-off.
3. Click Show price rounding-off calculator.
4. Enter a sample base price (your reference Shopify price).
5. The calculator instantly displays the resulting Amazon price for each Pricing Trend × Rounding Off combination — change the base value to compare further.

When to use it

• Sanity-check a % Increase or Value Decrease before applying it across all listings.
• Compare different Rounding Off options (e.g., End with 0.99 vs Whole number) to find the one that fits your pricing strategy.
• Confirm the math works at edge cases — small prices, large prices, fractional values.

Note

The calculator is preview-only — it doesn't change any prices. Once you're satisfied, configure the rule in Set Product Price, Set Sale Price, or Set Minimum Price and save.