Question - A factory has averaged the following monthly heating and cooling costs over the last 5 years. Calculate the PW at a nominal interest rate of 12%.
|
Month
|
Costs
|
|
January
|
$25,000
|
|
February
|
$19,000
|
|
March
|
$15,000
|
|
April
|
$9,000
|
|
May
|
$12,000
|
|
June
|
$18,000
|
|
July
|
$29,000
|
|
August
|
$33,000
|
|
September
|
$19,000
|
|
October
|
$8,000
|
|
November
|
$16,000
|
|
December
|
$28,000
|