900
Let x be the original price. Solve for x:
(1-.29)x=639
(.71)x=639
639/.71=x
x=900
70 %
72/1000
30 percent of 70 dollars will be approximately $21 US dollars.
The amount after the discount is $43.99
(225000/210000) x 100 = 107.142857 recurring (that is, 107.142857142857..) percent. The price increase is therefore 107.14.... - 100 = 7.142857... percent.
60 Percent
7620%
28.05
7.5
70 %
18:100
$8
56.8627451%
12.5%
72/1000
85% of your bid
36.8 months