<2,14> thats the answer its complicated but i got it after the 2nd try
Answer:
If you consume less energy you pay less with respect to the amount of energy you saved. If you saved 16% of total energy you should expect to lower your bill by 16%. Count how much is left -> 1900-1900*0.16=1596$
The app photo math is really awesome,
I Hope this Helps!
The fourth answer is right
