Averaged Calculated Price

This scale creates a slope between the quantity multiplied by the price for each scale. This scale is best for most use cases.

How it works:

• Exact quantity matches use the listed Price.
• If the quantity exceeds the maximum scale, the maximum scale is used.
• If the quantity is below the minimum scale, the minimum scale is used.
• If the quantity falls between two scales, a slope is drawn between each final price and the average is calculated.

• 250 Clicks would return 0.19 per click
• 400 Clicks would return 0.18 per click
• 50 Clicks would return 0.2 per click
• 175 Clicks would return 0.1928 per click

• Find the slope between the final prices of each scale: 20 (100 * 0.20) and 47.5 (250 * 0.19)
• Find where 175 sits on that slope (0.18333x + 1.6667 = 33.7445)
• Divide by the number of clicks
• Return 0.1928 per click

Step

This scale does not slide in any way. This pricing method is not ideal because it creates gaps near each scale threshold.

How it works:

• Exact quantity matches use the listed Price.
  
• If the quantity exceeds the maximum scale, the maximum scale is used.
• If the quantity is below the minimum scale the minimum scale is used.
• If the quantity falls between two scales the next highest scale is used.

• 250 Clicks would return 0.19 per click
• 400 Clicks would return 0.18 per click
• 50 Clicks would return 0.2 per click
• 175 Clicks would return 0.19 per click

• The problem with this method is that 249 Clicks at 0.19 (47.31) is less than 260 clicks at 0.18 (46.8). And the difference between 250 clicks at 0.19 (47.5) and 251 clicks at 0.18 (45.18) is 2.32. 
• These gaps are created between every scale and get proportionally larger as the number of clicks get higher.

Incremental

This scale calculation method is difficult to setup, but guarantees no lost revenue.

This scale breaks the quantity into groups and calculates these groups at different prices.

How it works:

• If the quantity is below the minimum scale the minimum scale is used.
  
• If the quantity falls between two scales. The first scale is used up to it's maximum quantity and then the next scale is applied up to it's maximum quantity, etc until the total item quantity is fulfilled.

• 100 would return 0.2
• 80 would return 0.2
• 150 would:
  • Price the first 100 of 150 at 0.2
  • Price the next 50 of 150 at 0.19
  • Return 0.19666 for the price