10 is what percent of 200

20%

To find what percent one number is of another number, you can use the following formula:

Part/Whole * 100 = Percent

In this case, the number 10 is the "part" and 200 is the "whole". To find what percent 10 is of 200, you can substitute these values into the formula:

10/200 * 100 = Percent

Simplifying the equation:

0.05 * 100 = Percent

Multiplying 0.05 by 100 gives us:

5 = Percent

Therefore, 10 is 5% of 200.