Last year, a department had sales for the month of February…

Last year, a department had sales for the month of February of $560,000.  This year, sales for the month of February totaled $540,000.  What was the percentage change?  Note: please express your answer with a + or – at the beginning (i.e. -5.2 or +5.2) 

A group of 150 lamps is being marked down from $60 each to $…

A group of 150 lamps is being marked down from $60 each to $49.99. At the first markdown, 60 are sold. The remaining lamps are marked to $39.99 and 30 are sold. Finally, the remaining lamps are reduced to $19.99 and another 30 are sold. What is the total markdown $ amount?