docs: PPE+U pricing model for creators (#2235)

Developer facing documentation for PPE+U

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Documentation-only change; no runtime, API, or pricing logic is
modified.
> 
> **Overview**
> Adds a new **"Pass platform usage to users"** section to the
`pay_per_event.mdx` monetization docs, documenting the `Pay per event +
usage` toggle that charges users for both PPE events and underlying
platform usage.
> 
> Includes a caution callout about reduced pricing transparency and an
illustrative screenshot of the toggle UI.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
e48241f. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-authored-by: Marcel Rebro <marcel.rebro@apify.com>

Author: 3 people

sources/academy/build-and-publish/apify-store-basics/how_actor_monetization_works.md

@@ -29,6 +29,15 @@ Monetizing your Actor on the Apify platform involves several key steps:
 
 - _How it works_: you charge users based on specific events triggered programmatically by your Actor's code. You earn 80% of the revenue minus platform usage costs.
 - - _Profit calculation_: `profit = (0.8 * revenue) - platform usage costs`
+
+:::info Pass platform usage costs to users
+
+Optionally, you can [pass costs associated with the platform usage](../../../platform/actors/publishing/monetize/pay-per-event#pass-platform-usage-to-users) to the users.
+
+Profit calculation: `profit = 0.8 * revenue`
+
+:::
+
 - _Event cost example_: you set the following events for your Actor:
   - `Actor start per 1 GB of memory` at $0.005
   - `Pages scraped` at $0.002

sources/platform/actors/publishing/images/pay_per_event_and_usage_toggle.png

@@ -57,6 +57,23 @@ An Actor's negative net profit does not affect the positive profit of another Ac
 1. _Test your pricing_: Run your Actor and analyze cost-effectiveness using a special dataset.
 1. _Communicate value_: Ensure pricing reflects the value provided and is competitive.
 
+## Pass platform usage to users
+
+During initial development or when testing pricing strategies, you can pass the platform usage costs directly to users to avoid negative profit margins. Users then pay for both the defined events and the underlying platform usage. Use this approach temporarily until you determine accurate event prices.
+
+
+:::caution Reduced pricing transparency
+
+Charging platform usage separately is less transparent for users and may discourage them from using your Actor. This also negatively impacts your [**Actor quality score**](../quality-score). Turn off this option once you determine accurate event prices.
+
+:::
+
+Use the **Pay per event + usage** toggle to enable or disable this option in the monetization flow.
+
+![Pay per event with usage toggle button](../images/pay_per_event_and_usage_toggle.png)
+
+The option can be turned off at any time with immediate effect, as it is a positive change for the user. Turning it on will take 14 days.
+
 ## Respect user spending limits
 
 Finish the Actor run once charging reaches user-configured maximum cost per run. Apify SDKs (JS and Python) return `ChargeResult` that helps determine when to finish.