This video continues the series relating to sequences and finance and looks at how we can apply the learnings we had for arithmetic sequences and recurrence relationships to the very real world finance problems we might encounter. I look at what simple interest and flat rate depreciation are. I look at unit cost depreciation are and how this all applies to the theory we have been looking at. I also show how to turn a recurrence relation into a rule (which allows me to easily find any term in a sequence). There are lots of worked examples and the theory is explained so it just makes sense.