Find the percent decrease.

Question

A grocery store reduced the price of a loaf of bread from $2.80 to $2.73. Find the percent decrease. 

Just need to know how to break it down step by step.

Answer 1

Let x = percent (as decimal)

 

2.80 - 2.80x = 2.73

 

2.80x   represents the price decrease.

 

 

Next, we solve for x.

 

-2.80x = -0.07

 

 

Divide both sides of the equation by -2.80.

 

x = 0.025

 

 

Finally, multiply this by 100.

 

x = 2.5

 

 

Percent decrease is 2.5%