Treatment (with air cleaner) | Control (without air cleaner) | |
---|---|---|
Mean body weight per head (kg) | 102.4 | 92.4 |
Auction price per kg ($) | 5.134 | |
Calculated amount (mean body weight per head × auction price per kg) | 525.73 | 474.39 |
Benefit (treatment – control) | $51.34 per head |