fix it. byteToPercent() and PercentToByte().

[pwnbit]

Existing code

def byteToPercent(byte):
    ...
    return int((byte * 100)/255)

def percentToByte(percent):
    ...
    return int((percent * 255)/100)

Modified code
Add Round() to Return.

def byteToPercent(byte):
    ...
    return int(round(byte * 100/255, 0))

def percentToByte(percent):
    ...
    return int(round(percent * 255/100, 0))

---

Comparison of results.

Code for comparison.

print(f"|{'before code':^22}|{'after code':^22}|")
print(f"|% to byte | byte to % | % to byte | byte to %|")
print("-"*47)
for i in range(0, 101):
    a = percentToByte(i)
    b = byteToPercent(a)

    c = ptb(i)
    d = btp(c)

    print(f"|{a:^10}|{b:^11}|{c:^11}|{d:^10}|")

Modifying the code increases accuracy.

The modified code represents exactly 0 ~ 100, 0 ~ 255.

Ex)

input = 70
byte1 = percentToByte(input)
per1 = byteToPercent(byte1)

byte2 = percentToByte_fixed(input)
per2 = byteToPercent_fixed(byte2)
print(byte1, per1, byte2, per2)
---------
Result :
178 69 178 70

Why did I enter 70, but it becomes 69?