Aspire 7 battery full charge capacity and design capacity, Is this normal?

For a brand new device, such a drop in battery capacity is not normal. Try performing a battery reset using the pinhole shown in the link below, and check if the issue persists:

https://community.acer.com/en/kb/articles/75-acer-internal-battery-reset

You may also try to perform battery calibration if you want to ensure accurate readings. Charge your laptop to 100%, let it fully discharge to 2-3%, then recharge to 100% without interruption and check.

If the problem remains, you should return the laptop and request a replacement without delay. Most return and replacement windows for laptops are valid for around 7 days. If you ordered from a shopping app like Amazon, go to your orders and select "Return and Replace." If you bought it from a store, contact them directly and ask for a replacement

Your battery health report showing a full charge capacity slightly higher than the design capacity after calibration is normal and not a cause for concern. You can now continue using your laptop normally with no fear.

By letting the battery discharge to around 47% and then fully charging it to 99%, you helped the battery management system recalibrated. This allow system to better estimate the actual full charge capacity.

Your battery is functioning normally, but I recommend monitoring its health for the next 6-7 days until your return policy expires. If similar behavior occurs again (though unlikely), you can request a replacement. Rest assured, even if the battery behaves the same way, very few changes will be needed. This approach ensures you don't miss your return window and gives you peace of mind about your new laptop's quality.