Pension hotel planned to offer 3 800 parking space for the month of June at of $120 per space. Costs associated with each parking space is as follows: N$ Direct cost 60 Indirect cost 30 90 To the nearest whole number, calculate the monthly margin of safety, as a percentage of planned sales? NB: You are not required to enter the unit or currency symbol. Enter numerical answer with no spaces. For example: 1000