The price of a gallon gasoline went from $2.10 to $2.54 over the course of one week. What is the percent increase in price, rounded to the nearest percent ?

Question

The price  of a gallon gasoline  went from $2.10 to $2.54 over the course of one week. What is the percent  increase in price, rounded to the nearest percent ?

phi · Answer

first find the fraction:   new - old  all divided by old
in this case, new is 2.54  and old is 2.10

after you get the fraction, divide (use a calculator) to make it a decimal.
then multiply by 100 to make it a percent.

can  you do that ?