Percents & formulas

Question 0

New percent

Answer 0

New value/ original value

Question 1

Percent change

Answer 1

Change in value/ original value

Question 2

Compound interest

Answer 2

= P(1+ (r/n))^nt

Question 3

Probability

Answer 3

# desired or successful outcomes/
Total # of possible outcomes

Question 4

Combinatorics

Answer 4

2 rules:
The number if ways of arranging n distinct objects ( if no restrictions) is n!.

If m members of a group are identical, divide the total number if arrangements by m!