From Wikipedia, the free encyclopedia. Phototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system. It is a type of photosensitivity. The skin response resembles an exaggerated sunburn.
Contribution margin ratio measures the percentage of sales that would increase net income. To calculate it, divide contribution margin by sales, either in total or per unit: Suppose a gadget selling for $100 per unit brings in $40 per unit of contribution margin.
Next >>. Deduplication Ratio is the ratio of data prior to deduplication to that of after deduplication. The deduplication ratio report shows the percentage of deduplication that has been realized system-wide. This report can be filtered to specific cloud accounts to see how effective deduplication has been for volumes assigned to those particular cloud storage accounts. Since the appliance performs deduplication across volumes within a cloud account, it is not possible to filter this view onto specific volumes.