How to set quantity for quantity pricing items

Description: In Quantity pricing items when we select quantity but its showing quantity as 1 we can use this solution to solve this problem.

Entrypoint:

_.extend(ProductDetailsFullView.prototype, {
                    getContext: _.wrap(ProductDetailsFullView.prototype.getContext, function (fn) {
                        var originalRet = fn.apply(this, _.toArray(arguments).slice(1));

                        originalRet.description = originalRet.model.attributes.item.attributes.storedetaileddescription;
                        var pricingSchedule = this.model.attributes.item.attributes.onlinecustomerprice_detail.priceschedule
                        if (pricingSchedule) {
                            originalRet.showQunatityPricing = true;
                        } else {
                            originalRet.showQunatityPricing = false;
                        }
                        return originalRet;
                    })
                });
_.extend(QuantityPricingView.prototype, {
                    events: {
                        'change [data-action="updateQuantities"]': 'updateQuantity'
                    },
                    updateQuantity: function (e) {

                        console.log(e.target.value, 'valueee')
                        this.model.set('quantityset', 500)
                        var quantityset = this.model.get('quantityset')
                        this.model.set('quantity', parseInt(quantityset))
                    },
                    getContext: _.wrap(QuantityPricingView.prototype.getContext, function getContext(fn) {
                        var context = fn.apply(this, _.toArray(arguments).slice(1));
                        var self = this;
                        console.log(this);
                        var pricingSchedule = this.model.attributes.item.attributes.onlinecustomerprice_detail.priceschedule
                        var quantityatfirst = this.model.attributes.item.attributes.onlinecustomerprice_detail.priceschedule[0].maximumquantity

                        var quantities = [];
                        var counter = 0;
                        var quantityFromModel = 0
                        if (pricingSchedule) {
                            if ($("#quantity").val()) {
                                quantityFromModel = this.model.attributes.quantity
                            } else {
                                this.model.set('quantity', parseInt(quantityatfirst))
                            }
                        }
                        _.each(pricingSchedule, function eachScheduled(schedule) {

                            if (schedule.maximumquantity && schedule.maximumquantity <= 50000) {
                                var quantity = parseInt(schedule.maximumquantity);

                                var price = quantity * (pricingSchedule[counter + 1].price * 1000);
                                price = price / 1000;



                                //var newPrice = price.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,');
                                var newPrice = parseFloat(price).toFixed(2);
                                var formattedPrice = "$" + newPrice;

                                var formattedQuantity = quantity.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,');
                                var dot = formattedQuantity.indexOf('.');
                                formattedQuantity = formattedQuantity.substring(0, dot);

                                var customName = formattedQuantity + '- ' + formattedPrice;


                                if (quantityFromModel > 0) {
                                    if (quantityFromModel == quantity) {
                                        quantities.push({ name: customName, value: quantity, selected: true });
                                    } else {
                                        quantities.push({ name: customName, value: quantity, selected: '' });
                                    }
                                } else {
                                    quantities.push({ name: customName, value: quantity, selected: '' });
                                }

                            }

                            counter++;
                        });

                        context.quantities = quantities;

                        _.each(context.priceSchedule, function (priceScheduleval) {

                            priceScheduleval.maximumquantity = priceScheduleval.maximumquantity + 1;
                            // priceScheduleval.maximumquantity=
                            var finalval = (priceScheduleval.maximumquantity) * (priceScheduleval.price);
                            priceScheduleval.price = parseFloat(finalval).toFixed(2);
                            priceScheduleval.price_formatted = "$" + (priceScheduleval.price);

                        });
                        // // var address = this.model.attributes.item.attributes.onlinecustomerprice_detail.priceschedule
                        // console.log("context final", context);
                        return context;
                    })
                });

template

<div class="cart-item-summary-item-list-actionable-amount">
<label class="cart-item-summary-item-list-actionable-label-qty">{{translate 'Quantity:'}}</label>
<select name="quantity" id="quantity" class="enhanced-quantity-select-cart" data-action="updateQuantities" style="background-position: 95% 50%;">
    {{#each quantities}}
    <option value="{{value}}" {{#if selected}}selected{{/if}}>{{name}}</option>
    {{/each}}
</select>
</div>