You can't use your license on RN to do so. You need to purchase a new license. You may have 2 options

1. Purchase QB Desktop Pro Plus or Premier Plus for 2 users. Purchase a 3rd party service to downgrade your file from QB Enterprise.

2. Purchase QB Desktop Enterprise for 2 users from selected partners and you can get a perpetual discount for renewals.

You may also consider to install the trial version on your computers to learn how it works before purchasing the new license.