The number of cans of soft drinks sold in a machine quartley for two years is recorded below.

$\backslash$table$[[,$number of cans$],[$year $1,],[1,280],[2,326],[3,286],[4,10],[$year $2,],[1,876],[2,846],[3,241],[4,460]]$

Assuming the moving average is computed based on five periods.

The last ratio to moving average is