D

E

F

G

H

I

J

K

L

M

N

$0$

P

R

S

Using the data shown below, compute the mean square error, mean absolute deviation, and mean absolute percentage error for the forecasts shown.

$\backslash$table$[[$Month$,$Forecast,Actual$],[$Demand$,\backslash$table$[[$Demand$]],],[$April$,170,180],[$May$,225,200],[$June$,210,200],[$July$,260,240],[$August$,200,230]]$