Maths- profit, loss, GST, percentages
Find the percentage increase when 56 increases to 85
% increase= difference ______________ x 100 Original 85-56 _________ x100 56 51.79%
Find the percentage decrease when 87,000 decreases to 45,000
%decrease= decrease ______________ x100 Original = 87,000- 45,000 ______________________ x 100 87,000 = 48.28%
How much is the GST tax?
10%
Selling price (for profit) =
100% + %profit x cost price
Selling price (for loss)=
100% - %loss x cost price
Find 13% of $856
13 ____x 856 100 $111.28
Find 30% of 34
30 ____ x 34 100 10.2
Convert 45% into a decimal
45 divided by 100= 0.45
Percentages of an amount- $54 as a percentage of $68
54 ____ x 100 68 =79.41%
Loss=
CP - SP
To compare fractions, decimals and percentages you....
Convert them to there decimal form and compare using place value
To find the percentage discount
Discount _____________x 100% Original
Find the percentage discount... a hat is reduced from $24 to $12
Discount= $24- $12= $12 %Discount= $12 ______x 100 $24 = 50%
Find the discount.. A shoe at $42 is given a 10% discount
Discount= 10% of $42 = 10 ____ x 42 100 = $4.20 Price to be paid = $42 - $4.20 = $37.80
To convert a percentage to a fraction or decimal
Divide by 100%
A packet of biscuits cost $2.50 before GST. Find A) the GST charged on the biscuits B) the TOTAl price.
Find 10% of $2.50 Then add it to the price without GST GST= 10% of $2.50 = 10 ____x 2.50 100 = $0.25 GST inclusive price= GST+ GST exclusive price = $0.25 + $2.50 = $2.75
To find the percentage increase or decrease you...
Find the difference between the two quantities then find Difference _______________ x 100% Original
Finding discount you....
Find the percentage of the original price Then subtract it from the original price
Percentage loss=
Loss _______________ x 100% Cost price
%loss formula....
Loss _______x 100% Cost
Convert 3 to a percentage __ 7
Multiply by 100 if the answer is a fraction press S to D 3 ___ x100 7 =42.86%
Convert 0.63 to a percentage
Multiply by 100% 0.63x100= 63%
To convert a fraction or decimal to a percentage
Multipy by 100%
Percentage profit=
Profit _______________ x 100% Cost price
%profit formula...
Profit ________x 100% Cost
Olivia buys t-shirts at $25 each and then sells them for $30 what is the percentage profit made on each t-shirt?
Profit= SP-CP = $30- $25 = $5 %profit= 5 ____x 100 25 = 20%
Convert 45% to a fraction
Put 45% over 100 then simplify if needed 45 9 _____ simplified _____ 100 20
Profit=
SP - CP
Olivia runs a clothing shop at a fixed profit margin of 70% for how much would Olivia sell a dress that cost her $50?
SP= 100% + %profit x CP SP= 100% +70% x $50 SP= 170% x $50 SP= 170 _____x50 100 SP= $85
Olivia purchased a pencil case fro $15 and then sold it at a 5% loss. What was the selling price?
SP= 100% - %loss x CP SP= 100% - 5% x $15 SP= 95% x $15 SP= 95 _____x 15 100 SP= $14.25
GST exclusive price is.....
The price of something BEFORE GST is added
Cost price (CP) is....
The price which the company buys the product
The selling price (SP) is....
The price which the company sells the product
A profit is when...
The selling price is greater than the cost price (The price which something is sold is more than the price it was bought for)
A loss is when....
The selling price is less than the cost price (When the cost price is more than the selling price)
GST inclusive price is....
The total price of something including GST
To find a percentage of an amount you.....
Write the percentage as a fraction (put it over 100) Change the of to multiply