The mortality rate during the period varied significantly across different regions, with some places experiencing a loss of one-fifth of their population while others faced near-total death rates of up to ninety percent. This erratic pattern highlights the widespread devastation caused by the events of that time.

Overall, modern demographers have reached a consensus that approximately one-third of the global population perished during this era, echoing the sentiments expressed by Froissart. This figure reflects the catastrophic impact experienced from India to Iceland, illustrating the extensive human toll during the calamitous 14th century as detailed in Barbara W. Tuchman's book.