%s Flashcards
1
Q
Formula for asking for % change
A
( New - Old ) / Old
2
Q
If looking for _______, _________ or __________, Use the formula New Percent = New Value/Original Value
A
Original Value, the New Value, the New % of the original value.
3
Q
A 15% decrease is also expressed as ?
A
75% or (.75) of original
4
Q
Successive Percent Probs
EX.
If the price of a shirt increases by 25%, then is put on sale and reduced at 15%, how to set up the formula.
A
(S(1.25))*(.85) = New Shirt Price
5
Q
Compounding interest can be treated like ?
A
Successive Percent Problems
EX.
100 @ 10% compounded quarterly. What is the new amount after 9 months?
((100)(1.025))(1.025)(1.025) =
