Equations

Question 1

Net operating income

Answer 1

Net Operating Income = Gross Operating Income X (1 – the vacancy rate) – operating expenses.

In your example, you explain that a homeowner could take out a loan for $100,000, costing $500 per month to build the granny flat. The flat would rent for $800 per month.

Assuming the property would be vacant 5% of the time, what is the net operating income of the property?
$9,600 X (1 – 0.05) - $6,000 = $3,120

Question 2

Linear Population

Answer 2

total population = whole number of increase(number of years) + base population

Question 3

Expontenial Population

Answer 3

Exponential is (current population)(r + 1) to the nth power (will change by a constant rate over time)

Question 4

The future value equation

Answer 4

is FV = PV (1 + r)^n

Question 5

FAR

Answer 5

Two ways: 1. To determine the FAR ratio: Gross Floor Area/Buildable Land area. 2. To determine the FAR allowed: Multiply the total square feet of the lot by the FAR ratio.

Question 6

USGS Quadrangle Map Scale

Answer 6

At a scale of 1:24,000, one inch on a
USGS quad represents 2
4,000 inches or 2,000 feet