Power feed utilization percentage is not accurate

[markkuleinio]

NetBox version

v3.3.8

Python version

3.9

Steps to Reproduce

1. Add manufacturer "Test"
2. Add device type "TestType" (manufacturer Test)
3. Add device role "Test"
4. Add site "TestSite"
5. Add power panel "TestPanel" (site = TestSite)
6. Add power feed "TestFeed1" (panel TestPanel, AC, 120V, 15A, single-phase, max 80%)
7. Add device "PowerRail" (role = Test, type = TestType, site = TestSite)
8. For PowerRail, add power port "Upstream1", and then connect it to power feed TestFeed1
9. For PowerRail, add power outlet "Outlet1" (power port = Upstream1)
10. Add device "MyDevice1" (role = Test, type = TestType, site = TestSite)
11. For MyDevice1, add power port "PS1" (maximum draw = 400, allocated draw = 400), and then connect it to PowerRail port Outlet1

Expected Behavior

Power feed "TestFeed1" shows utilization of 400VA/1440VA = 27.8%

Observed Behavior

Power feed "TestFeed1" shows utilization of 28.0%: