Help me about loops

[aliwien]

Hello everybody, I want the project about loops and I need your help. My desire is:
(a) (b)
1) 150
2) 300
3) 450
4) 600
My purpose increment columns a and b in the same while code. I'll appreciate it if you help me, thanks.

[buran]

So, what have you tried so far? What particular problem you cannot solve on your own?

[aliwien]

So, what have you tried so far? What particular problem you cannot solve on your own?

I wrote the code below. As you can see, I could write the b column but I couldn't write the a column. How can I write column a?

def artış(x, r):
    y = x*((r/100)+1)
    return y
h = 0
a = float(input('Number of cases: '))
b = float(input('Percentage increase: '))
while a < 30001:
    print(a)
    a = artış(a, b)

[buran]

number of issues:
you start with a being, number of cases, while in the previous post that is b column.
what is h?
you claim you cannot write a column, but you print a? I guess there is some confusion between a and b in the previous example and here.

def calculate(cases, rate):
    return int(cases * (rate / 100 + 1))

n = 1
cases = int(input('Number of cases: ')) # do you really want a float for cases
rate = float(input('Percentage increase: '))
while cases <= 3000:
    print(f'{n}) {cases}')
    cases = calculate(cases, rate)
    n += 1

Output:
Number of cases: 150
Percentage increase: 50
1) 150
2) 225
3) 337
4) 505
5) 757
6) 1135
7) 1702
8) 2553

in your original post the column b increase by fixed number - 150, not by given percent in which case you can use a for loop