Yes, capital contributed to the new commercial enterprise and used for its equipment, premises and operations is invested capital, provided it is at risk and traceable. Government fees, professional fees and the family's living costs are not.
Capital is what the enterprise receives and puts to work
In a direct investment the investor contributes cash or other qualifying capital to the new commercial enterprise, and the enterprise uses it for the business: trucks, mowers, ploughs, a yard lease, insurance, working capital and payroll. All of that is deployment of the invested capital and counts, so long as the contribution is documented as an equity investment at risk rather than a loan the investor can call back. The threshold is measured by what the investor puts into the enterprise, currently US$1,050,000 or US$800,000 in a targeted employment area, to be confirmed on the filing date because the amounts adjust.
What does not count: government fees on the USCIS fee schedule, immigrant visa fees, legal and business-plan fees, the targeted-employment-area analysis, and the couple's relocation and living expenses. Reserve capital sitting in the enterprise's account with no business purpose may be questioned as not truly at risk, so the plan should show how the full amount is used. Keep a ledger from the first wire.