From the What$-$if data file provided, create a table. Heading for first column is Avg. number of mainland visitor arrival per day, second column is Mainland visitors total contribution HK retail sales, and the third column is HK GDP$\mathrm{.}2.$ Use Avg. number of mainland visitor arrival per day as the first Column input cell$\mathrm{.}3.$ Calculate the Mainland visitors total contribution HK retail sales, and HK GDP for different Avg. number of mainland visitor arrival per day, ranging: $100000,90000,80000,70000,60000,50000,40000,30000,20000,10000\mathrm{.}4.$ Create the What$-$if Data Table$\mathrm{.}5.$ Interpret the resulting table $($i$.$e$.,$ what relationships do you find from the table?$)$