Simple interest

Introduction

Simple interest

Time between two dates

Accumulation and discount at simple interest

Present value

Simple discount

Equivalent rates

Notes

Bank discount note

Discounting promissory notes

Compound interest

Compound amount and present value

Compound amount at a fraction of an integer

Present value at a fraction period

Continuous compounding

Varying interest

Finding the time t

Finding the nominal rate j

Nominal rate and effective rate

Comparison of two rates

Values of obligations and their comparison

Equation of value

Annuities

Introduction

Ordinary annuity

The amount of an ordinary annuity

The present value of an ordinary annuity

The present value of an ordinary annuity

Finding the periodic payment r

Finding the interest rate j

Finding the time (when present value is given)

Outstanding balance

Finding the smaller final payment (or additional payment)

Payment of debts by amortization

Finding time t (when amount is given)

Sinking fund

Payments of debt by sinking fund method

Annuity due

Present value a of an annuity due

Amount of s of an annuity due

Deferred annuity

Value of annuity and arbitrary date

Perpetuity

Depreciation

Uniform depreciation method

Decreasing charge depreciation methods

Bonds

Purchase price

Purchase bonds on the market

Finding the yield rate

Bond schedules