The electricity costs of a business decreased from $12,000 one year to $ 10,920 the next. What is the rate of decrease??
2006-11-12 11:21:59 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
-9.00%
2006-11-12 11:26:06 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Your cost went down 9%. It's really not enough information to know if the 9% decrease came from less electricity usage or a rate decrease in elctricity costs...either way YOUR cost is down 9% year over year.
2006-11-12 19:31:25 · answer #2 · answered by fade_this_rally 7 · 1⤊ 0⤋
Take the difference of those two numbers and put it over the 12,000. Convert that to a percent. Then you'll have the decrease per year.
2006-11-12 19:25:03 · answer #3 · answered by Anonymous · 0⤊ 1⤋
its minus 9 percent.
1 percent of 12,000 is 120
the difference is 1080.. 120 goes into 1080 9 times
2006-11-12 19:30:03 · answer #4 · answered by Anonymous · 1⤊ 0⤋
12000- 10920 =1080
decrease rate - 1080/100
10.8%
2006-11-12 19:26:56 · answer #5 · answered by dart 3 · 0⤊ 0⤋
starting rate over final rate, subtract one, and times by 100... that will give you your answer!
2006-11-12 19:38:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋