One winter the cost of bananas cost $0.80 per lb. The next winter the cost was

$1.05 per lb. What was the percentage increase?

Well. The percentage increase would be 30%.

Its would have to be rounded. If you time. 80 by the decimal of 30 percent, which is. 30 you will receive. 24, that will equal out to 1.04.

.80 x. 30 =.24

.80 +.24 = $1.04

So assume. 8=100%

1.05-0.8=iincrease=0.25

find what. 25/.8=

.25/.8=2.5/8 = (use calculator) = 0.3125

percent means parts out of 100

so

0.3125/1 times 10/10=3.125/10 times 10/10=31.25/100

the percentage increase was 31.25%