Rough calculation
1/8" E7018 @ 110-106 Amps will deposit about 2.5 lbs. per hour
.052 E71T-1 Gas Shielded FCAW @ 250 amps will deposit about 9.5 lbs. per hour.
The Lincoln Procedures Handbook is a good place to learn hour to calculate this kind of thing and much much more.
How your operators are able to control their arc efficiency has a major bearing on real deposition.