During the pre-holiday rush, martin's department store increased its sales staff from 150 to 200 persons. by what percent must it now decrease its sales staff to return to the usual number of salespersons?

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.