Percentages Flashcards
(6 cards)
1
Q
How would you increase a number by a percent?
A
Find the multiplier (more than 1)
Multiply the values
2
Q
How would you decrease a number by a percent?
A
Find the multiplier (less than 1)
Multiply the values
3
Q
How would you calculate the original price of an item when it’s been changed by a percentage?
A
- Find the multiplier
- Divide it by the multiplier
4
Q
How do you calculate the percentage change between two values?
A
Difference between the values/the original value*100
5
Q
How do you calculate compound interest?
A
- Find the multiplier
Original amount*multiplier(to the power of amount of time)
6
Q
How do you calculate simple interest?
A
- Find the percentage of the amount for one year.
- Multiply it by the time period
