$7.$ At the end of fiscal year $2022,$ company Z discloses the following balance sheet:

Assets

Cash $500\mathrm{.}000$ euros

Non$-$cash current assets $800\mathrm{.}000$ euros

Non$-$current assets $1\mathrm{.}300\mathrm{.}000$ euros

Minority equity investments $300\mathrm{.}000$ euros

Total $2\mathrm{.}900\mathrm{.}000$ euros

Equity and Liabilities

Current debt $300\mathrm{.}000$ euros

Other current liabilities $700\mathrm{.}000$ euros

Non$-$current debt $1\mathrm{.}400\mathrm{.}000$ euros

Deferred tax liability $150\mathrm{.}000$ euros

Equity $350\mathrm{.}000$ euros

Total $2\mathrm{.}900\mathrm{.}000$ euros

The company needs a cash balance of $300\mathrm{.}000$ euros for its operations.

Please calculate company Z: $1)$ operating working capital $2)$ investment assets.