Chapter 8 Percent

Question 1

what is p% of x?

Answer 1

P/100 * x. Ex 15 percent of x—- 15/100 * x = .15x

Question 2

What is p% greater than x?

Answer 2

(1+p/100)x. Ex 15% greater than x—- (1=15/100)x=1.15x

Question 3

What is P% less than x?

Answer 3

(1-p/100)x. Ex 15% less than x ——- (1-15/100)x=0.85x

Question 4

What’s the formula for percent change?

Answer 4

The new value - original value over/ the original value and all multiplied by 100%