1. **State the problem:** Given a table of direct costs with each component's cost and percentage chosen, calculate the total direct costs (DC). 2. **List the given costs:** Installation of purchased equipment: 118975 590: 71385 Electrical (installed): 118975 Buildings (including services): 95180 Yard improvements: 47950 Piping(installed): 95180 Land: 23795 3. **Calculate total direct costs (DC):** Sum all individual costs: $$\text{DC} = 118975 + 71385 + 118975 + 95180 + 47950 + 95180 + 23795$$ 4. **Perform the addition:** $$118975 + 71385 = 190360$$ $$190360 + 118975 = 309335$$ $$309335 + 95180 = 404515$$ $$404515 + 47950 = 452465$$ $$452465 + 95180 = 547645$$ $$547645 + 23795 = 571440$$ 5. **Final answer:** $$\boxed{571440}$$ is the total direct cost (DC).