I have to write each of the following percent change into a ratio comparing it to the original quantity. Then I have to write it as a constant multiplier.

Question

This is the example in my book:
3% increase, 103/100, 1+0.03
So I understand how to do single digit numbers, like 8, but the problems i'm stuck on are:
11% decrease
12.5% growth
6 1/4% loss and x% increase.
How would I go about solving these?

Answer 1

1 + .03 = 1.03

1 - .11 = .89

1 + .125 = 1.125 = 9/8 (.125 = 1/8)

1 - .0625 = .9375 = 15/16
(.0625 = half of .125 or 1/16)

(1 + x)?

I hope this helps. Thanks for asking.