Where,

P = Payment Amount

F = Future Amount

r = Rate of Interest (compounded)

N = Number of Payments

Rate of Interest Compounded is,

If Monthly,

If Quarterly,

If Half yearly,

If Yearly,

Where,

amt = Desire amount range

d = Down payment

c = Closing Cost

P = Payment Amount

F = Future Value

r = Rate of Interest (compounded)

N = Number of Payments

Rate of Interest Compounded is,

If Monthly,

If Quarterly,

If Half yearly,

If Yearly,

The Return on Investment (ROI) is the ratio of the difference between earnings and the initial amount invested to the initial amount invested. ROI is often expressed in terms of percentage. Hence the value is finally multiplied by 100.

Price Elasticity (PED or Ed) = Change in Quantity / Change in Price

Where,

Change in Quantity = ((New Quantity - Original Quantity) / Original Quantity)

Change in Price = ((New Price - Original Price) / Original Price)

Estimate Savings Amount = Factor * Payment

Factor = ( (Interest + 1)

Interest = (Rate+1)

Current Interest = Interest / (Interest + 1)

Where,

A = Annual Payment

F = Future Value

i = Interest Rate

n = Number of Years

Where,

PV = Present Value of Growing Perpetuity

d = Amount

r = Discount Rate

g = Growth Rate

Where,

a = Annual Payout

p = Principal Amount

r = Rate Of Interest

n = Number Of Years

Where,

P = Annuity Payment Factor

r = Rate Per Period

n = Number Of Periods

Where,

r

n = Number Of Years

Total Liablities = Mortgage + Loans + Credit Cards + Other Liabilities

Estate Worth = Total Asset - Total Liabilities

Tax Free Allowance = 65000 (Married)

Tax Free Allowance = 32500 (Unmarried)

Net Worth = Estate Worth - Tax Free Allowance

Inheritance Tax Bill = Net Worth x (40 / 100)

Change in Price (%) = ((P - Q) / Q) × 100

Price Elasticity Of Supply (%) = (Change in Quantity / Change in Price) × 100

Where,

N = New Quantity

O = Original Quantity

P = New Price

Q = Original Price

Where,

PV = Present Value

P = Annual Lease Payments

r = Interest Rate

n = Number of Years in the Lease Term

RV = Residual Value

SUM[P/(1+r)

Payment = Vr / (1 - (1 + r)

Where,

v = Value of the Annuity

p = Amount we pay each Period

r = Interest Rate

n = Number of Periods