How to get Service Cost and Service Profit from the API

[Alekh S]

When I export the milestones and tasks from a project (this generates an .xls file), 

I get the following columns generated:

Title
Project
Owner Object
Description
Assignee
Duration
Predicted Start
Planned Start
Commenced
Predicted Due
Planned Due
Completed
Status
Skills
Price ($)
Subtotal Price ($)
Material Price ($)
Amount Invoiced ($)
Budget to Invoice ($)
Budget Hours
Budget Hours Subtotal
Rate Title
Rate ($)
Used Budget ($)
Billable Hours
Non Billable Hours
Total Hours
Time Remaining
Budget Hours Remaining
Service Cost
Service Profit
Margin
Material Cost
Material Profit
Material Margin
Tags
Portfolio Sponsor

I can't seem to figure out how to get Service Cost and Service Profit from the API. The closest thing I can find is service_price_subtotal_estimate from the object_budgets Endpoint which looks like it's Service Cost added to Service Profit.