Asap.
find the percent decrease from 20 to 17. round to nearest tenth if necessary.
also can someone explain how to do it

  15% decrease

Step-by-step explanation:

The appropriate formula is ...

  (percentage change) = (amount of change)/(original value) × 100%

Where the amount of change is ...

  (amount of change) = (new value) - (original value)

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Putting these two formulas together, we get ...

  (percentage change) = ((new value) - (original value))/(original value) × 100%

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Another way to write the same formula is ...

  (percentage change) = ((new value)/(original value) - 1) × 100%

Filling in the numbers you have, you get ...

  (percentage change) = (17 - 20)/20 × 100%

     = -3/20 × 100%

     = -15%

When the percentage change is negative, it means the change was a decrease.

Here, you know the change is a decrease and you just want to know the amount of decrease. That amount is a 15% decrease.

aloha~! my name is zalgo and i am here to you out on this gracious day. in order to compare the ratios easily, it is best that we simplify the question first. so, the cougars would have 6 wins for 5 losses, bobcats make 2 wins for 1 loss. bulldogs and tigers have a ratio where you can't simplify it. so, the team with the lowest rate would be the bobcats.

i hope that this ! : d

"stay and stay proud! " - zalgo