I'm confused by something which is quite simple. It's to do with rephrasing a percentage relationship.
Take this example "if a quantity is increased by x%, the new quantity is (100 + x% of the original".
I'm told by my study guide that you can write this relationship as:
Original x [1 + percent increase over 100] = NEW
Now, I don't quite understand how we get from the bit in italics to the bit in bold...(where for example does the "1" come from)?
To take a similar example: "z minus y percent of z" can be rewritten as:
z[1 - y over 100]
When it comes to percents, I get a complete mental block and I would be appreciative if somebody could describe how / why we get from the phrase in italics to the equation in bold.
Thanks
Take this example "if a quantity is increased by x%, the new quantity is (100 + x% of the original".
I'm told by my study guide that you can write this relationship as:
Original x [1 + percent increase over 100] = NEW
Now, I don't quite understand how we get from the bit in italics to the bit in bold...(where for example does the "1" come from)?
To take a similar example: "z minus y percent of z" can be rewritten as:
z[1 - y over 100]
When it comes to percents, I get a complete mental block and I would be appreciative if somebody could describe how / why we get from the phrase in italics to the equation in bold.
Thanks
