Last year, there were 120 seniors in Limon High School. This year there are 145. What is the percent of increase? Round to the nearest percent.
Answer

83%

17%

21%

79%

Question

Last year, there were 120 seniors in Limon High School. This year there are 145. What is the percent of increase? Round to the nearest percent.
Answer
		
83%
		
17%
		
21%
		
79%

anonymous · Answer

what was the actual increase (as a number)?

anonymous · Answer

i.e. what is $145-120$ ?

anonymous · Answer

25

anonymous · Answer

17%

anonymous · Answer

ok one more step 
take the fraction 
$$\frac{25}{120}$$ (notice you divide by the original number here ) 
then either reduce or what is easier is to use a calculator and get 
$$25\div 120 = .2083$$
move the decimal two places to the left and get $20.83\%$

anonymous · Answer

you have to round, so make it $21\%$

anonymous · Answer

17% is not the right answer btw
you have to compare the increase (or decease) to the ORIGINAL amount

anonymous · Answer

so the answer is 21%?

anonymous · Answer

yes for sure
use a calculator for the division, move the decimal point in your head