Sales of a company is $243 million in 2013, and it increases to $250 million in 2014. a. Compute the percentage increase in sales, using the usual formula 100 X (Sales 2014 - Sales 2013 )/Sales 2013 ....

Sales of a company is $243 million in 2013, and it increases to $250 million
in 2014.
a. Compute the percentage increase in sales, using the usual formula
100
X
(Sales₂₀₁₄
- Sales₂₀₁₃)/Sales₂₀₁₃

. Compare this value to the approximation.
100
X
[ln(Sales₂₀₁₄) - ln(Sales₂₀₁₃)].

b. Repeat (a), assuming that Sales₂₀₁₄
= 255, Sales₂₀₁₄
= 260, and
Sales₂₀₁₄
= 265.
c. How good is the approximation when the change is small? Does the
quality of the approximation deteriorate as the percentage change
increases?