Myntra.com — price hiking instantly when moved to cart

Https://www.myntra.com/jeans/roadster/roadster-men-blue-slim-tapered-fit-mid-ris...⇄

Initially the product show price with 60% off and when i clicked add to cart and tried to open my bag and i found out a price hike, it shows only 50% in the cart
They compel us to buy products by showing low prices and hikes prices so they get enough profit. All customers fall for it because they may have selected it by surfing around 2-4 hrs on myntra. So we can summarise that myntra go for profits by confusing the customer.
Only solution : hike prices only at 12pm