The easy way that I have found is to calculate 10% first, which means moving the decimal point 1 place to the left (14.000), and then multiply by 3 (3 x 10% = 30%) to get 42.000.
28 Dollars
Around 250,000-450,000
40
3,120
After rounding it works out at 47 cent.
09.20 dollars is 20 per cent OF 46.00 dollars. 20 per cent OFF of 46.00 dollars is 46.00 - 9.20 = 36.80 dollars.
$1,188
19.992 is 80 per cent of 24.99, 4.998 is 80 per cent off 24.99.
8.25
40
32 x .75 = 32 x 3/4 = 24 pounds off
980
28 Dollars
84.99
It is: 199 minus 29.85 = 169.15
30 per cent
eighty per cent