$39-42.$ If you had forecast $200$ for January, what would you forecast for each month following, if you used the exponential smoothing method with a smoothing constant of $\mathrm{.}20?$

$\backslash$table$[[$MONTH$,$FORECAST,ACTUAL SALES$],[$January$,200,190],[$February$,$answer $1,200],[$March$,$answer $2,180],[$April$,$answer $3,190],[$May$,$answer $4,170]]$

ANSWER FOR MAY