8 feet to 10 feet
well, its an INCREASE
so, you subtract 10-8, which is two ,then use the formula
amount of change
original number
which is;
2
10
one way to get the answer is to use the "in and out" method
2 in
10 out
what this means is to put the 2 in the inside of the division problem, and the 10 on the outside(i cant make the division thing so pretend its there)
10)2
add a decimal and zeros
10)2.0
=25% (you add a percent sign becaus thats what it is, % increse)