XYZ wants to issue equity to reduce its debt.

The company currently has: cost-of-debt = 11%; cost-of-equity = 17%; debttoequity ratio = 30% per year constant. Revenues are USD 550k per year forever, operating costs are USD 170k per year forever. XYZ will claim depreciation of USD 21k per year forever. XYZ now has 95k shares. The tax rate is 22%.

If XYZ wants to reduce their debt/equity ratio to 9% per year constant, at this new debt/equity level, cost-of-debt = 9% (assume outstanding debt figure goes down by repaying it using equity proceeds only, and that XYZ does not keep any excess cash in its balance sheet).

What would be the change in XYZ stock price? Is there enough info to calculate this? Otherwise, what extra info would I need to compute this?