18.

Question

In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100.

a. Find the percent of increase in the newspaper’s circulation from 2000 to 2001 and from 2001 to 2002.
b. Which period had a higher percent of increase, 2000 to 2001, or 2001 to 2002?

Can someone explain it to me? Not just the formula. :)

Answer 1

the % change is the actual change divided by the original value.
Thus, from 2000 to 2001, the % growth is
(3640-3250)/3250 = 0.12 or 12%
now do the same steps for the 2nd period, and then you can answer (b) easily

Answer 2

(3640-3250)/3250 x 100 =
(390)/3250 x 100 =
.12 x 100 = 12%

(4100-3640)/3640 x 100 =
(460)/3640 x 100 =
.1263736264 x 100 = ~ 12.6%

2001 to 2002 had a higher percent of increase.