A pie chart is a good way of representing
this sort of data, as it shows clearly at
a glance how the total is shared out. So you
don't need to know any values to be able to
see at a glance that more has been spent on
health than transport. However you do need
to know the exact amount that has been spent
and to do that we need to perform a calculation.
So let's look at how we're going to work out
how much of this total here has been spent
on health, where it says that health has a
budget of 19.1 percent. So what we want to
do is to work out how much we're budgeting
out of the total to spend on health. So we
can see here that health is 19.1 percent.
But how much is that in actual money? So what
calculation do we need to do? Well we've said
that the total is 732 billion. Now because
we're working in such large amounts, I'm not
going to write all the zeros on there. I've
just got a B to represent billion. We've been
told that for health we're spending 19.1 percent
of the total. So 19.1 percent of 732. So what
we need to do is 19.1 divided by 100. We divide
by 100 because it's 19.1 percent. Percent
means out of 100. So 19.1 out of 100, and
it's multiplied by 732. So using a calculator
we can just do 19.1 divided by 100, multiplied
by 732. And that gives us 139.8. And remember
that that's in billions. So 139.8 billion
is approximately 140 billion. This sign here
just means approximately. Don't worry about
that. So the answer is 140 billion. Using
the same method, can you work out how much
is going to be spent on transport and education?
