To find 21 percent of a number, multiply the number by 0.21. In this instance, 0.21 x 70 = 14.7. Therefore, 21 percent of 70 is equal to 14.7.
To find the percent that a number, x, is out of another number, y, divide x by y and multiply by 100. So (21/30)*100 = 70, which means that 21 is 70% of 30.
30% is 0.30 so, 0.30 x 70 = 2100 move the decimal to the left 2 times and get 21 and 21 is your answer!
21/30 x 100 = 70. Therefore, 21 is 70 percent of 30.
ratio = 70% : 30 % = 7 : 3
70% of 30= 70% * 30= 0.7 * 30= 21
70 - 30% = 49
30% of 70 is 21 because 10% is 7
30% of 70 = 70*30/100 = 21
21 is 30% of 70
30 percent 'off' leaves 70 percent 'on'.70 percent of 199.99 = (0.7 x 199.99) = 139.993
30 percent of 70 dollars will be approximately $21 US dollars.