def aplica_descompte(quant,pdesc):
    desc = quant*pdesc/100
    return quant - desc

def calcula_bonus(vendes):
    return vendes//100

def sou(sou_brut,porc_desc,vendes):
    sou_net = aplica_descompte(sou_brut,porc_desc)
    sou_final = sou_net + calcula_bonus(vendes)*5
    return sou_final