Michael is an Internet service provider. On December$31,,$ he bought an existing business with servers and a building worth $$$$.$

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During $,$ his business grew and he bought new servers for $$$$.$

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The market value of some of his older servers fell by $$$$.$

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What was$$ Michael's gross$$ investment, depreciation, and net investment during $?$

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Part $1$

$$Michael$\text{'}$s gross investment during was $$$

$$

enter your response here.

Part $2$

$$Michael$\text{'}$s depreciation during was $$$

$$

enter your response here.

Part $3$

$$Michael$\text{'}$s net investment during was $$$

$$

enter your response here.