Unable to enter Negative Numbers

Some Android devices may encounter issues with input for negative numbers due to a lack of a negative sign appearing on the devices default keyboard. This commonly effects Samsung devices which use a default Samsung Keyboard. To resolve this, we recommend installing the Gboard keyboard app from the Google Play Store (find here). Upon installing, you will need to select the Gboard keyboard as your default input method.

Example of the Samsung Keyboard which does not show negative symbol

Examle of the Gboard Keyboard when installed