round_number_down.py

from math import ceil, floor

def round_2_down(number):
    """Arredonda 2 casas sempre para baixo"""
    if number < 0:
        return ceil(number * 100)/100
    
    return floor(number * 100)/100


def round_n_down(number, digits=2):
    """Arredonda n casas sempre para baixo"""
    if number < 0:
        return ceil(number * pow(10, digits))/pow(10, digits)
    
    return floor(number * pow(10, digits))/pow(10, digits)