Answer:
I like to think of this like money. If you have $30..00 and you have tax to add to it then what you want to do is:
Divide the number you wish to increase by 100 to find 1% of it.
Multiply 1% by your chosen percentage.
Add this number to your original number.
There you go, you have just added a percentage increase to a number!
In this case you would have $31.80
So adding 6% to 30 is 31.8!
Explanation:
Hope it helps!!! =D