what is the size of cover in facebook

w1 = 820
h1 = 312
pc = w1 * h1
w2 = 640
h2 = 360
phone = w2 * h2

Here is what the above code is Doing:
1. It’s creating a variable called pc and assigning it the value of w1 * h1.
2. It’s creating a variable called phone and assigning it the value of w2 * h2.
3. It’s creating a variable called ratio and assigning it the value of pc / phone.
4. It’s creating a variable called result and assigning it the value of ratio * 100.
5. It’s printing the value of result.