What is 420 plus 9 percent?

What is 420 plus 9 percent (420 plus 9%)? Simply put, what do you get if you add 9 percent to 420? Here we will show you how to calculate 420 plus 9 percent using a two-step process.

Step 1) Calculate 9 percent of 420: To calculate 9 percent of 420, you multiply 9 by 420 and then divide the product you get by 100. Here is the math to illustrate:

9 x 420 = 3780
3780 / 100 = 37.8

Step 2) Add the 9 percent you calculated in Step 1 to 420. Here is the math to illustrate:

420 + 37.8 = 457.8

Therefore, the answer to "What is 420 plus 9 percent?" is:

457.8

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