How do you work out percentages of amounts?

coast cost £24 reduced by25% gets further 10% off what is the price

Convert 68 out of 90 into a percentage

please show as much working as you can and NO CALCULATOR PLEASE, :)

an investor invested a total of 72, how much was invested in each mutual fund?

For example: working out the original pre vat value when you only know the percentage and final figure?

MR GOH AND MR HO EACH HAVE SOME APPLES.IF MR GOH SELLS 60APPLES PER DAY AND MR HO SELLS 30APPLES PER DAY.MR GOH WIILL HAVE 400 APPLES LEFT WHEN MR HO HAS SOLD ALL HIS APPLES,IF MR GOH SELLS 30 APPLES PER DAY AND MR HO SELL 60 APPLES PER DAY,MR GOH WILL HAVE 700，HOW MANY APPLES DOES MR GOH HAS?

the cost of a hamburger goes from 2.00 determine the percent of increase

how do you work out missing values have a grid with 1to 10 down the left side & diffrent percentage at the top also in the gri space out eg 60kg ,28cl, £5.40 ect dont what to do help

how do you work out missing values have a grid with 1to 10 down the left side & diffrent percentage at the top also in the gri space out eg 60kg ,28cl, £5.40 ect dont what to do help

Can someone please take a look at the math problem, ( http://www.truitc.com/mathq.jpg ) and explain how to arrive at the answer please. Im really struggling.

I'm struggling with how I work out 21% of 52. I was never any good at percentages.

i understand how to take 5% 10%, 20%,30% of a number but im really confused by percentages like 28% and 4.3 %

Need help of 15% of 8200km Need help with 65% of 240 Need help with 45% of 180

Need help

In a batch of eggs, 3% were broken. There were 18 broken eggs. How many eggs were there in the batch?

Hi, I'm revising for my gcse exam in June and struggling with these two topics.

Percentage Decrease: What is the new cost after a price of £56 is decreased by 15%? Work it out as 0.85 5g=£47.50 This is a question from a GCSE revision guide, I don't really get this. I have tried to find a way to understand but I really don't- I don't understand where the 0.85 came from. Multiplying powers- again this is a question from a rev guide- 48=32, but 48=2₂ 2₃=2₅ =32 I don't understand how 2 to the power of 3 is 8,

Percentage Decrease: Question from GCSE - 243 / 9 =7, but 243 / 9 = 3₅ / 3₂ = 3₃= 27

Can you please explain all these questions to me, sorry that I'm asking to many questions but please can you answer them, this is the only thing I'm struggling on. Thank You :D

what are the working outs of 5% 21

what is 5% of 360?

What is 78% of 650,000

What's 30% of 250?

work out 70% of £986

: how much is the commission

Introduction

Have you ever seen a 5% discount in a shop or needed to calculate a 15% tip? All percentage calculations, no matter how complex, are built on one simple, core skill: finding 1 percent.

The word "percent" literally means "per hundred." So, 1% is simply one part out of one hundred.

Once you know how to find 1% of a number, you can easily find any other percentage.

• To find 5%, you just find 1% and multiply it by 5.
• To find 20%, you find 1% and multiply it by 20.
• To find 72%, you find 1% and multiply it by 72.

This guide will show you the one simple trick to find 1% of any number instantly.

The Key Method: Finding 1%

Because 1% means "one out of one hundred" (£1/100£), finding 1% of a number is the same as dividing that number by 100.

The fastest way to divide any number by 100 is to move the decimal point two places to the left.

That's the entire trick.

Worked Example 1: A simple number

Find 1% of 300.

• The number is 300. The decimal point is at the end: 300.
• Move the decimal two places to the left: 3.00
• Answer: 1% of 300 is 3.

Worked Example 2: A number with no zeros

Find 1% of 189.

• The number is 189. The decimal point is at the end: 189.
• Move the decimal two places to the left: 1.89
• Answer: 1% of 189 is 1.89.

Worked Example 3: A number that already has a decimal

Find 1% of 84.5.

• The number is 84.5.
• Move the decimal two places to the left: 0.845
• Answer: 1% of 84.5 is 0.845.

Worked Example 4: A very small decimal number

Find 1% of 0.7.

• The number is 0.7.
• Move the decimal two places to the left. We need to add zeros for the empty spaces: 0.007
• Answer: 1% of 0.7 is 0.007.

Practice Questions & Solutions