I do not understand how to get the numbers that go in the yellow highlighted boxes.

Name: Incident A: Argentina Currency Devaluation Spreadsheet Net Contribution - in Argentine Pesos) Forecasted Exchange Rates Arg. Peso (ARS) per 1USD ($) 4.2974 5.0558 5.7299 Current Exchange Rate Currency Depreciates Currency Depreciates 15.00% 25.00% Unit Sales Manufacturer Sales Costs Gross Margin 325.9 183.3 142.6 43.76% Total Marketing 73.3 22.49% Currency Devalues 15% and 25%- How Does That Affect Contribution After Mkting? Contribution after Mkting | 69.3 21.26%| 15.00% 25.00% No Change - Net Contribution ($000) Contribution after Mkting $000 Change in $ Contribution after Mkting Change in Argentine Peso Contribution after Mkting 46 Unit Sales Manufacturer Sales Costs Gross Margin $ 75.8 $ 42.7 Additional Sales Revenue Needed to Maintain Contribution Currency Depreciates $33.18 43.76% Total Marketing $17.06 22.49% Additional Manufacturer Sales (Pesos) (15%) Contribution after Mkting $16.13 21.26% | Additional Manufacturer Sales (Pesos) (25%)