How to optimize the text change code after clicking on the button?

Question

JavaScript

Good afternoon. It is necessary to implement a mechanism on the site: by clicking on the + and - buttons, the price is added and subtracted. Moreover, the price step can be uneven.
I've written a script to the best of my experience, it works exactly as I need it, but I find it very cumbersome and unoptimized. Please tell me how to make it more beautiful, I will be grateful not even for the finished code, but just for the train of thought :)

My code:

function plusPrice() {
                plus.addEventListener('click', (e) => {
                e.preventDefault();
                person.value++;
                if (person.value >= 10) {
                    person.value = 10;
                }
                if (person.value == 2) {
                    price.textContent = `245 000 ₸`;
                }
                if (person.value == 3) {
                    price.textContent = `240 000 ₸`;
                }
                if (person.value == 4) {
                    price.textContent = `238 000 ₸`;
                }
                if (person.value == 5) {
                    price.textContent = `235 000 ₸`;
                }
                if (person.value == 6) {
                    price.textContent = `230 000 ₸`;
                }
                if (person.value == 7) {
                    price.textContent = `225 000 ₸`;
                }
                if (person.value == 8) {
                    price.textContent = `220 000 ₸`;
                }
                if (person.value == 9) {
                    price.textContent = `215 000 ₸`;
                }
            });            
            }
            plusPrice();

The same code when clicking on the minus button.

Answer 1

let quantity = 1; // изначально 1

// цены в тыс. для числа-индекса (считается от 0: 0, 1, 2, ... 9)
const prices = [0, 250, 245, 240, 238, 235, 230, 225, 220, 215]; // 1..9

// клик на плюс
plus.addEventListener('click', (e) => {
  e.preventDefault();
  fixPrice(+1);
});

// клик на минус
minus.addEventListener('click', (e) => {
  e.preventDefault();
  fixPrice(-1);
});

// пересчет цены
const fixPrice = (delta) => {
  // обновить количество
  quantity += delta; // +/- 1
  quantity = Math.max(1, quantity); // не меньше 1
  quantity = Math.min(9, quantity); // не больше 9

  // показать новые значения
  person.value = quantity; // показать новое число персон
  price.textContent = `${prices[quantity]} 000 ₸`; // показать цену
}