• anonymous
I have a pretty simple math problem: the price of a liter cola increased from $1.09 to$1.29. What was the percent of increase? I know to first subtract (1.29-1.09) that equals \$.20. Next divide .20 by 1.09 (first move decimal points over) I got the same ander as the book, except it says the final answer is 18.3% increase. Where did the decimal come from? It's supposed to be in front of the 1. I think they're rounding, but how did the get that? And how are you supposed to round a non terminating, non repeating decimal(in finance)?
Mathematics

Looking for something else?

Not the answer you are looking for? Search for more explanations.