fix per CU pricing across docs

Author: TC-MO

sources/academy/platform/get_most_of_actors/monetizing_your_actor.md

@@ -41,7 +41,7 @@ In this model, you set a price per 1000 results. Users are charged based on the
 
 | Service                         | Unit price                 |
 |:--------------------------------|:---------------------------|
-| Compute unit                    | **$0.4** / CU              |
+| Compute unit                    | **$0.3** / CU              |
 | Residential proxies             | **$13** / GB               |
 | SERPs proxy                     | **$3** / 1,000 SERPs       |
 | Data transfer - external        | **$0.20** / GB             |

sources/academy/platform/get_most_of_actors/store_basics/how_actor_monetization_works.md

@@ -42,7 +42,7 @@ Learn more about the rental pricing model in our [documentation](/platform/actor
 - _How it works_: you charge users based on the number of results your Actor generates. You earn 80% of the revenue minus platform usage costs.
 - _Profit calculation_: `profit = (0.8 * revenue) - platform usage costs`
 - _Cost breakdown_:
-  - Compute unit: $0.4 per CU
+  - Compute unit: $0.3 per CU
   - Residential proxies: $13 per GB
   - SERPs proxy: $3 per 1,000 SERPs
   - Data transfer (external): $0.20 per GB

sources/platform/actors/publishing/monetize/pricing_and_costs.mdx

@@ -21,7 +21,7 @@ Platform usage by _FREE_ tier users is covered by Apify and does not contribute
 
 :::
 
-To calculate your costs for a specific run by paying user, multiply the unit cost of each service by the quantity consumed. For example, if a _BRONZE_ tier user run uses 10 compute units (CUs) at $0.4/CU, your cost would be $4.
+To calculate your costs for a specific run by paying user, multiply the unit cost of each service by the quantity consumed. For example, if a _BRONZE_ tier user run uses 10 compute units (CUs) at $0.3/CU, your cost would be $3.
 
 As highlighted in the [How to attract larger customers of PPE and PPR Actors](#how-to-attract-larger-customers-of-ppe-and-ppr-actors) section, if your Actor uses tiered pricing, the user's discount tier determines the unit costs applied to their runs. Your costs are lower for higher tiers, enabling you to offer more competitive pricing to these customers, while sustaining healthy profit margins.