कस्टम Percentage स्केलिंग

# Define max and min values and collect them
max_days = df.____({____: ____}).____()[0][0]
min_days = df.____({____: ____}).____()[0][0]

# Create a new column based off the scaled data
df = df.____(____, 
                  ____((df[____] - min_days) / (max_days - min_days)) * ____)

# Calc max and min for new column
print(df.____({____: ____}).____())
print(df.____({____: ____}).____())