Active Assist 成本最佳化建議可協助使用者最佳化雲端部署成本，例如找出浪費的資源 (閒置資源)、醒目顯示資源過度佈建，以及最佳化計費模式。 Google Cloud 在每項成本最佳化建議中，您通常可以找到預估的節省金額，前提是您決定採取建議的動作。本文將說明如何根據您與 Google Cloud 簽訂的合約類型，以及您的特定角色和權限，計算這些節省費用的預估值。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-09-02 (世界標準時間)。"],[],[],null,["# Understanding how cost savings are calculated in recommendations\n================================================================\n\nOverview\n--------\n\nActive Assist [cost optimization recommendations](/recommender/docs/recommenders)\nhelp Google Cloud users optimize their cloud deployment cost such as by\nidentifying waste (idle resources), highlighting over-provisioned resources, and\noptimizing pricing models. In each of those cost optimization recommendations,\nyou can typically find an estimated cost saving amount, if you were to decide\nand take the suggested action. This document provides information on how those\ncost saving estimates are calculated, based on the contract type you may have\nwith Google Cloud and your specific role and permissions.\n\nIf your Cloud Billing Account is associated with a custom pricing contract\nand if you have the\n[required permissions to view costs and usage](/billing/docs/how-to/pricing-table#full-permissions),\nthe cost optimization recommendations that are visible to you will reflect your\ncustom contract pricing (based on your historical costs) in the cost saving\ncalculation. Without permissions to see costs and usage, the cost savings\npresented in those recommendations will be calculated by using the\n[list pricing](/pricing/list).\n\nThis cost saving calculation methodology applies to all Active Assist\nrecommendations surfaces, [Cloud Console](/cloud-console),\n[BigQuery Export](/recommender/docs/bq-export/export-recommendations-to-bq),\nand [Recommender](/recommender/docs/overview).\n| **Note:** The cost savings calculations in the recommendations, whether based on your historical costs or list pricing, are estimates based on past usage and don't take into consideration credits or any additional discounts. The cost saving estimates are intended to help customers compare and prioritize cost saving recommendations.\n\nFields in the UI, API, BigQuery Export\n--------------------------------------\n\nBased on your permissions, you will see different values in the PricingType\nfield.\n\nPricing in Recommendation Hub\n-----------------------------\n\nOn the Recommendation Hub, when you are scoped to a project and have appropriate permissions, you will see cost savings based on based on your custom contract pricing.\n\nHowever, if you are scoped to an organization, you won't see custom pricing even if you have appropriate permissions unless you click into the recommendation to view its details.\n\nAlternatively, to view custom pricing at an organization view, you can also [export your recommendations to BigQuery](/recommender/docs/bq-export/export-recommendations-to-bq).\n\nPermissions required to see cost recommendations with custom contractual pricing\n--------------------------------------------------------------------------------\n\nTo view your cost recommendations reflecting custom contract pricing (based on\nyour historical costs), you need a role that includes the following permissions,\ndepending on the scope of the recommendation.\n\n- ` `[billing.resourceCosts.get](/billing/docs/how-to/custom-roles#payment_information) to view costs and usage for a project. This is applicable to recommendations that are scoped at the project level - the vast majority of cost recommendations fall into this category. To gain this permission, ask your administrator to grant you the above permission for the projects you need.\n\n- ` `[billing.accounts.getSpendingInformation](/billing/docs/how-to/custom-roles#payment_information) to view costs and usage for a billing account. This is applicable to recommendations that are scoped at the Billing Account level, for example [Committed use discount recommender](/docs/cuds-recommender). To gain this permission, ask your administrator to grant you one of the following [Cloud Billing IAM](/billing/docs/how-to/billing-access) roles on your Cloud Billing account:\n\n - Billing Account Administrator\n - Billing Account Costs Manager\n - Billing Account Viewer\n\nWhat's next\n-----------\n\n- [Active Assist recommenders](/recommender/docs/recommenders)\n- [Cloud Billing access control \\& permissions](/billing/docs/how-to/billing-access)\n- [Create Custom Roles for Billing](/billing/docs/how-to/custom-roles)"]]
