http://www.teachmefinance.com/
Cash Flows in Excel
Cash Flows in Excel – Doing a Cash Flow Forecast
Flexible Budgets
Video 1 Video 2
Portfolio Risk and Return
http://www.zenwealth.com/BusinessFinanceOnline/RR/Portfolios.html
Expected Rate of Return
http://www.financepractitioner.com/asset-management-calculations/expected-rate-of-return
Variable Costs
http://study.com/academy/lesson/variable-cost-definition-formula-examples.html