$1$ Compute trend percents for the following accounts using $2020$ as the base year. For each of the three accounts, state whether the situation as revealed by the trend percents appears to be favourable or unfavourable.

$15$

points.

$\backslash$table$[[,2024,2023,2022,2021,2020],[$Sales$,$$$537,360,$$$358,240,$$$279,875,$$$204,288,$$$153,600$