A sales manager gets a 5 percent commission on sales of Silver Dot widescreen TV sets. If each unit costs $1,000, how many units does he need to sell to earn a commission of $2,550?
If the sales manager gets 5% from each $1000 TV, then he earns 50 dollars commission on one TV set. To earn a commission of $2550, he must sell 51 TV sets (because 2550 / 50 = 51).
