The price is 0.00027360.
I wanna invest $20.
How do I work out the amount of coin I should be buying given the current price?
JH
$20 = 0.000518BTC @ current price of $39,600
Now, DOT/BTC @ price of 0.00027360
0.000518
0.0002735 = 1.8932 DOT ( Amount of coin to buy)
To attain $100 gain, let the new price be N
$100 = 0.002525BTC
1.8932 X N = 0.002525BTC
N = 0.002525
1.8932. = 0.00133 ( New price to get $100 gain)
Conclusion: DOT/BTC price will rise from 0.0002736 to 0.00133 to get $100 gain, by simply using $20 to get 1.8932 quantity of DOT.