Dylan opened a credit card account with $600.00 of available credit. Now that he has made some purchases, Dylan's account only has $426.00 of available credit. What is the percentage decrease of the amount of available credit in Dylan's account?

The credit card decrease percentage is 71%

Explanation:

To know the percentage of decrease of the card we will make a simple rule of three, which indicates the value we need.

We have that 100% of the card quota is 600, and we want to know how much the percentage decreases when the account has 426 available, we do the following;

100% ---> $600

X -----> $426

100 * 426 = x * 600

= x

71% = X

that is, the decrease in the account when you have $426 available quota is 71%.

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