In MT5, the charts display the bid price by default. The bid price is the price at which you can sell a financial instrument. If you want to view the ask price (the price at which you can buy a financial instrument):
Platform
Steps
Desktop
Right-click chart > properties > show tab > check show ask price line > OK.
iOS
Settings > charts > toggle ask price line ON or OFF.
Android
Tap chart > settings icon > check/uncheck ask price line.