Please help me calculate these 3 questions below.

Extra Credit Question: FY-19 Revenue $ 10,000,000 Cost of Sales 8,000,000 Gross Profit 2,000,000 Gross Margin 20.0% Operating Expenses * 1,000,000 Depreciation 200,000 Amortization 100,000 Total Operating Expenses 1,300,000 Operating Income 700,000 Interest Expenses 100,000 Profit Before Tax 600,000 Tax 150,000 Net Income $ 450,000 DSO 36 DIO 34 DPO 30 FY-20 Assumptions: Revenue decreased by 20% Gross Margin % remain same DSO increased by 3 days DIO decreased by 1 day DPO improved by 2 days * FY-19 Operating Expenses include $100,000 severance payment and $50,000 one time lease termination cost Questions: Q1 Prepare the impact on operating cashflow in FY-20 due to change in DSO, DIO & DPO 3.5% Q2 Prepare EBITDA for FY-19 0.5% Q3 Prepare Non-GAAP Net Income for FY-19 1.0% Notes: The % will be added directly to your grade so if you have 86%, full 5% will take your grade to 91% - No partial credits for any questions. "All or None" score for each question. If you score zero, it will not impact your current grade but this is a great opportunity to improve your overall grade