Calculate the percentage increase the following:

Question

0

649

1

a) 50 --> 60 60-50=10 10/50*100=20%

b) 30 --> 31.5 31.5-30=1.5 1.5/30*100=5%

c) 18 --> 33.3 33.3-18=15.3 15.3/18*100=85%

d) 40 --> 84 idk for this one, because when i do it the way i did the others i get, 110% and i don't know if that's correct.

e) 4 -->13 same with this one, when i do it the way i did the others i get 225%

plz help

Guest Jun 5, 2016

CPhill · Answer 1 · 2016-06-05T09:23:25

d) 40 → 84

( [84 - 40] / 40 * 100) % = ( 44/40 * 100)% = (11/10 * 100)% =

(1100/10)% = 110 %

e) 4 → 13

( [ 13 - 4] / 4 *100) % = (9/4 * 100)% = (2.25 * 100) % = 225%