Thread: percent increase and decrease

Help, I am not sure how to find the percent of increase in a problem or even the percent of decrease. My parents have no idea either!!!

Examples: The sales of HiTop sneakers rose from $4billion to $4.4 billion. What is the percent of increase?

One week, a certain stock market index went down from 1,863 to 1,677. What was the percent of decrease?

Find the percent of chan $20,200 to $17,350.

Originally Posted by cckrr4025

Help, I am not sure how to find the percent of increase in a problem or even the percent of decrease. My parents have no idea either!!!

Examples: The sales of HiTop sneakers rose from $4billion to $4.4 billion. What is the percent of increase?

One week, a certain stock market index went down from 1,863 to 1,677. What was the percent of decrease?

Find the percent of chan $20,200 to $17,350.

Your answers should be:

0.1%
-0.099%
-0.141%

Originally Posted by cckrr4025

Help, I am not sure how to find the percent of increase in a problem or even the percent of decrease. My parents have no idea either!!!

Examples: The sales of HiTop sneakers rose from $4billion to $4.4 billion. What is the percent of increase?

first you need to know how much it increased

$ B $ B = $ B

it increased by $0.4 B

B(original price)=$4 B
P(amount increased)= $0.4 B
R(percent increased)=?

in billions

R=1%
you can check it by

One week, a certain stock market index went down from 1,863 to 1,677. What was the percent of decrease?

Find the percent of chan $20,200 to $17,350.

find first how much it decreased then use the formula