Calculate % Increase from Scale Factor: Stumped? Help Here!

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matheus
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Hi guys,

This question has me a bit stumped and I can't seem to find any methods on Google that would help me solve this:
lh4l3.jpg


The last part of the question asks me to find the value of the scale factor, which in this equation I believe is 1.8.

I know how to calculate percentage increases the normal way, but I have never come across this sort of questions before, I'm unsure of how I can use the scale factor to calculate the percentage increase of the figures recorded in the table :(

Can anyone give me a hint here? :cool:

Cheers for any help :D
 
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Your image is not viewable. Could you please repost the image? Then we'd be much better able to help you out.