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Alex_Xolod [135]
3 years ago
9

How do you find percent change??

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
6 0
To calculate the percentage increase: First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. If your answer is a negative number then this is a percentage decrease
Lady bird [3.3K]3 years ago
5 0
To find percent change find the difference between the two numbers. Then, set up a proportion.

difference is to smaller number as x is to 100. 
Cross multiply and solve for x.

Hope this helps!
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Part A: Data summary is given in the table

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So... 4 folks, working for 8hours per day, do it in 15days

hmm alrite...so 4 folks working for 8hrs in 1 day, each one does 8, 4 of them, 4*8 = 32, so, they do 32 workhours every day, now for 15 days, that'd be 32*15, or 480

so, the whole job really takes 480 hours

now hmm let's see, the firm decides to increase the folks, but decrease the hours, so, 5 folks each working 6hours every day

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