Solutions by everydaycalculation.com
840 is 4000% of 21
If you are using a calculator, simply enter 840×100÷4000, which will give you the answer.
MathStep (Works offline)
Download our mobile app and learn how to work with percentages in your own time:
Android and iPhone/ iPad
More percentage problems: 8000% of what number is 840 4000% of what number is 1680 4000% of what number is 2520 4000% of what number is 4200 4000% of what number is 5880 4000% of 840 What percent is 4000 of 840
© everydaycalculation.com