Calculator version

From Wiki-IoT

Version 2

Grading system: EU Energy Labels (2021)

Grade Value
A 3
B 4
C 5
D 6
E 7
F 8
G 9

Version 1

Grading system: North American Academic

Grade Value
A+ 3
A 4
A- 5
B 6
C 7
D 8
F 9