Скидки на оптовые заказы свадебных платьев

Количество и более       рублей с каждого платья      минимальная скидка

           5                                    100                                          500

           10                                  190                                          1900

           20                                  270                                          5400

           30                                  340                                          10200 

           40                                  400                                          16000

           50                                  450                                          22500