Let's assume we own 420 kg steers and we are looking to see if they can be replaced by 260 kg steers at a profit. The above calculator shows a loss of $62.67 if we sold them and replaced.
In the example below we are looking to see what if we take those 420 kg steers forward to 500 kg.That also shows a loss of $29.48.
So we look to change class and buy cows.
(note when taking them forward we ONLY include agistment and interest if it is appropriate)