Increases

 I heard a news report that there were 111 deaths among the homeless due to Covid. This was a 23% increase. Sad news of course, but it made me think of what that meant if you wanted to know what the amount was previously. A little algebra would do the trick.

Assume there were "x" deaths previously, so the equation would be:

                        x deaths plus a 23% increase is 111

                        x + 0.23x = 111        

                         1.23x = 111

                         x = 111/1.23

                         x = 90

A practical, every day application