Update BookDepreciationDetail (#754)

Co-authored-by: Chris Mitchell <[email protected]>

Author: natdebarbieri

xero_assets.yaml

@@ -859,6 +859,30 @@ components:
           x-is-money: true
           example: 5.0000
           description: All depreciation occurring in the current financial year.
+        businessUseCapitalGain:
+          type: number
+          format: decimal
+          x-is-money: true
+          description: (New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its business use.
+        businessUseCurrentGainLoss:
+          type: number
+          format: decimal
+          x-is-money: true
+          description: (New Zealand Orgs Only) Represents the gain or loss from the disposal of the business use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s business use.
+        privateUseCapitalGain:
+          type: number
+          format: decimal
+          x-is-money: true
+          description: (New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its private (non-business) use.
+        privateUseCurrentGainLoss:
+          type: number
+          format: decimal
+          x-is-money: true
+          description: (New Zealand Orgs Only) Represents the gain or loss from the disposal of the private use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s private use.
+        initialDeductionPercentage:
+          type: number
+          format: decimal
+          description: (New Zealand Orgs Only) The Investment Boost deduction percentage.
     Setting:
       required:
         - name