Please helpp me ; There were 30 turtles in a pond yesterday. Today, there are 28 turtles in the pond. Find thee percent of change. Did it increase or decrease?

Question

anonymous · Answer

well fisrt of all did the total number of turtles in the pond increase or decrease?

anonymous · Answer

dont worry about the percentage part yet, just the numbers...

anonymous · Answer

decrease

anonymous · Answer

right by how much?

anonymous · Answer

2

anonymous · Answer

good. Now what percentage of 30 is 2?

anonymous · Answer

think of it like a pie, you have 30 pieces of pie at the beginning, and you ate two. So what fraction of the pie did you eat?

anonymous · Answer

think of it like a pie, you have 30 pieces of pie at the beginning, and you ate two. So what fraction of the pie did you eat?

anonymous · Answer

$$\frac{ 28 }{30}$$

anonymous · Answer

almost, that is how much is left, you actually ate 2/30

anonymous · Answer

so far so good?

anonymous · Answer

yup

anonymous · Answer

ok now since we are talking about percentages everything is up to 100, all you have to do is multiply your fraction by 100

anonymous · Answer

put this on your calculator and you get 6.67% decrease

anonymous · Answer

the decreasing part we had establish earlier remember?