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Calculate
The owner math shops already do in spreadsheets: loaded cost ÷ billed hours ÷ (1 − target GP). Effective labour rate is labour dollars collected ÷ hours billed — the number that actually landed.
Billed hours
28.5
Cost / billed hour
$270.18
Implied door (ex GST)
$600.39
$330.21 GP per billed hour exclusive · GST 10%
ELR
$158.06
Door was $600.39. Gap is $442.33.
Sell at 50 GP ($50–150)
$168.00
| Band | Target GP |
|---|---|
| Under $20 | 70 GP |
| $20–50 | 60 GP |
| $50–150 | 50 GP |
| $150–400 | 40 GP |
| $400+ | 30 GP |
Door rate = (weekly overhead + weekly wage cost) ÷ billed hours ÷ (1 − target labour GP). Billed hours = available hours × utilisation. Effective labour rate = labour dollars collected ÷ hours billed. Shops go broke posting $180 and collecting $142. The loaded MA000089 cost is the floor under the door rate — not a substitute for it.
Overhead $4,500 + wages $3,200 = $7,700. 38 h × 75% = 28.5 billed. Cost/h = $270.18. At 55% GP, door = $600.39 exclusive.
Teaching calculator. It does not read your Wrench tenant. Posted door rate is not ELR.