format_pricing

The format_pricing formats a pricing tier.

{{ package.line_items[0]|format_pricing }}

For flat pricing, outputs a simple dollar figure:
$500.00

For more complex pricing, outputs things like:
Unit pricing
One-time Setup $ 1,000.00
Base price $ 500.001 to 1000 at $ 1.15/cycle/unit
1001 to 2000 at $ 1.10/cycle/unit