............per year/per one more year..........
1. A one-year subscription package for my smartphone network is $400 per year.
1. A two-year subscription package for my smartphone network is $300 per year.
1. A three-year subscription package for my smartphone network is $250 per year.
2. The package is cheaper on a per year basis.
3. The package is cheaper per one more year of subscription.
4. The packages are cheaper per one more year of subscription.
I just made up the rate for my network expense.
I tried to talk about this.
How do #2/#3/#4 sound? Do they sound natural? How would you express that?
Thank you and good morning. :)