How do you find the percent change given the original number is 25 and new number is 28?

3 Answers
Jim G. · EZ as pi
Jun 4, 2017

#12%" increase"#

Explanation:

#"to calculate "color(blue)"percentage increase/decrease"#

#color(red)(bar(ul(|color(white)(2/2)color(black)(%" change "=("increase/decrease")/"original "xx100%)color(white)(2/2)|)))#

#"here the increase "=28-25=3#

#"and the original "=25#

#rArr%" change "=3/25xx100%#

#color(white)(rArrpercent chang)=3/cancel(25)^1xxcancel(100)^4%#

#color(white)(rArrpercent chang)=12%" increase"#

Binayaka C. · EZ as pi
Jun 4, 2017

Percent change is
#12%#

Explanation:

Percent change is # (28-25)/25*100% =(3*4)%=12%# [Ans]

EZ as pi
Jun 4, 2017

#12%# increase

Explanation:

To find a percent change, write a fraction using the amount of change and the original value.

#% "change" = "Fraction" xx100%#

Change is #25 to 28# the actual difference is #28-25 = 3#

#3/25 xx 100%#

#= 12%#

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