There was an typo, the right function is Int(347 + (75.695 - 74.215)/0.02) = 420. (so the change is the plus-sign after 347). Sorry for that.

But I broke the problem down to: 1.48/0.02 = 74 but Int(1.48/0.02) = 73, still Int(74) = 74 (as I think it should be...)

There was an typo, the right function is Int(347 + (75.695 - 74.215)/0.02) = 420. (so the change is the plus-sign after 347). Sorry for that.

But I broke the problem down to: 1.48/0.02 = 74 but Int(1.48/0.02) = 73, still Int(74) = 74 (as I think it should be...)