Complete Using Trend Analyses for Sales

Short Answer

Complete using trend analyses for sales. (Round to nearest percent and use 2014 as the base year.)
$$\begin{array} { | c | c | c | c | c | } \hline & 2017 & 2016 & 2015 & 2014 \\\hline \text { Sales } & \$ 158,000 & \$ 615,000 & \$ 280,000 & \$ 500,000 \\\hline & \mathrm { A } & \mathrm { B } & \mathrm { C } & \mathrm { D } \\\hline\end{array}$$