Selina and three of her classmates each wrote out the steps for finding an approximate percent change. they all agreed on the first and fourth step:

1. find the positive difference between the original number and the new number.
2.
3.
4. round the answer if necessary.

they did not agree on steps 2 and 3. which instructions are correct for steps 2 and 3?
2. divide the difference by the original number.
3. multiply the quotient by 100 to change it from a decimal to a percent.
2. divide the difference by the new number.

3. multiply the quotient by 100 to change it from a decimal to a percent.
2. divide the difference by the original number.

3. multiply the quotient by 10 to change it from a decimal to a percent.
2. divide the difference by the new number.

3. multiply the quotient by 10 to change it from a decimal to a percent.