2 percent of 21:

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How to calculate how much will be 2 percent of the 21? The correct answer is:

0.42

The solution is as follows: We make a proportion -
21 is 100 percent.
??? (X - the desired number) is 2 percent
What is 2% of 21?
Solution: 2 * 21 / 100 = 0.42

Other examples of calculating interest on an amount:

2% of 4 = 0.08 (remains: 3.92)	2% of 41 = 0.82 (remains: 40.18)
2% of 105 = 2.1 (remains: 102.9)	2% of 206 = 4.12 (remains: 201.88)
4% of 7 = 0.28 (remains: 6.72)	4% of 42 = 1.68 (remains: 40.32)
4% of 58 = 2.32 (remains: 55.68)	4% of 187 = 7.48 (remains: 179.52)
71% of 198 = 140.58 (remains: 57.42)	71% of 383 = 271.93 (remains: 111.07)
71% of 710 = 504.1 (remains: 205.9)	71% of 7021 = 4984.91 (remains: 2036.09)

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