Hey, I'm having trouble with this textbook problem - if someone could provide the steps and solution it would be greatly appreciated. :)

3. Sales in a company are $156 in 2013 and increase to $158 in 2014. a. Compute the percentage increase in sales, using the usual formula 100 x Sales2013, (Sales2014-Sales2013), Compute this value to the approximation 100 x (In(Sales2014) - In(Sales2013)). b. Repeat (a), assuming that Sales2013 = 200 and Sales20 = 300, respectively. Can you confirm the increased approximation errors