How to find the figure from knowing the original figure and percentage increase

Hello all,

This is probable really simple for most of you but I need to work something out and wondered if someone could lend a hand please.

I have a figure. 163

I need to know a 12.3% increase of 163. I don't have any other numbers you see, that's why I'm doing the sum.

7. 163 (+12.3%)

6. --- (+10.4%)

5. --- (+8.5%)

And so on... I just can't for the life of me figure out how to find the figure that 12.3% more than 163 is. I presume I need to convert into decimals or something?

Any help greatly appreciated.

Thanks :)