[Python] How can I convert a list of numbers in various decimals to two decimal places...

I have a code that calculate the growth of population as follows:

new_pop = init_pop
new_pop_list = [new_pop]
while new_pop <= 1500:
new_pop *= (1 + growth_rate)
new_pop_list.append(round(new_pop, 2))

print(new_pop_list)


which displays a list of number in various decimals

[1000, 1050.0, 1102.5, 1157.62, 1215.51, 1276.28, 1340.1, 1407.1, 1477.46, 1551.33]


How can I display the above list with all number in 2 decimal places, that is

[1000.00, 1050.000, 1102.50, 1157.62, 1215.51, 1276.28, 1340.10, 1407.10, 1477.46, 1551.33]


If I tried

new_pop_list.append(format(new_pop, '.2f'))


The output would be displayed as string instead of number, that is

['1000.00', '1050.000', ..., '1407.10', '1477.46', '1551.33']


Using float after format didn't do the trick either (numbers in various decimal scales)

new_pop_list.append(float(format(new_pop, '.2f')))
# Output displayed as [1000, 1050.0, 1102.5, 1157.62, 1215.51, 1276.28, 1340.1, 1407.1, 1477.46, 1551.33]

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