The Espresso Cart Had the Following Pattern of Espresso Sales

Essay

The Espresso Cart had the following pattern of espresso sales over the last two weeks:
$\begin{array}{|l|c|l|c|}\hline {\text { Week 1 }} && \text { Week 2 } & \\\hline \text { Monday } & 873 & \text { Monday } & 912 \\\hline \text { Tuesday } & 904 & \text { Tuesday } & 859 \\\hline \text { Wednesday } & 911 & \text { Wednesday } & 906 \\\hline \text { Thursday } & 887 & \text { Thursday } & 900 \\\hline \text { Friday } & 899 & \text { Friday } & ? \\\hline\end{array}$ What is the forecast for Friday's sales using a three-day moving average?