$1-$Using fiscal $2016$ as the base year, compute trend percents for fiscal years $2016,2017,$ and $2018$ for net sales, cost of sales, operating income, other income $($expense$)$ net, provision for income taxes, and net income.

$2-$Compute common$-$size percents for fiscal years $2017$ and $2018$ for the following categories of assets: $($a$)$ total current assets; $($b$)$ property, plant and equipment, net; and $($c$)$ accounts receivable,

$3-$Using current assets as a percent of total assets to measure liquidity, did Apple's asset makeup become more liquid or less liquid in $2018?$