Explanation

x is 0.5% of y. So if you fix a value of \(y\), any value at all, you fix x.

Lets do that, say y=100.

x= 0.5% of y or \(x=\frac{0.5}{100} \times y\)=0.5

Now y is what percent of x part. This is where it get a bit tricky!Now \(\frac{y}{x}=\frac{100}{0.5}=200\).

Or y is 200 times x. which is 20000%.

Note percent can be broken down as

per -

cent. Here

per means for every (or divided by) and cent means (100).

So for every 100 of x we have \(100 \times 200\) of y.

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Sandy

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