To find the margin of safety in dollars, subtract the breakeven sales from the budged or actual sales.
Current sales are 41,800 units
Break even point in units is 33,900
Cost per unit is $170
(33,900)($170) = $5,763,000
(41,800)($170) = $7,106,000
The margin of safety in dollars is:
$7,106,000 - $5,763,000 = $1,343,000