A shirt originally cost $39.39, but it is on sale for $27.57. What is the percentage decrease of the price of the shirt?

30 percent decrease

Step-by-step explanation:

looking at this i know its a percent decrease

so how do we find percent decrease?

first we subtract the first value 39.39 & the final value 27.57

39.39-27.57 = 11.82

then we divide 11.82 by the first value

like this 11.82:39.39 = 0.3000

then we multiply what we got by 100

0.3000*100 = 30 percent

the way that most people mess up is when they divide sometimes they might do 39.39 divided by 11.82 instead of 11.82:39.39.