Stress and nausea can be determined by looking at changes in eating habits, vomiting, lack of energy, and weight loss. (ricevillageanimalhospital.com)
To begin, cash earnings must be somehow related to the cash account and can be found by looking at the change in the cash account. (investopedia.com)
While this is reasonable for looking at changes over time, it is certainly not an estimate of the true mean of the surface temperature of the globe. (realclimate.org)