-88.86% is the change from 664 to 74
Calculation steps:
[( 74 - 664 ) ÷ 664] x 100 = -88.86%
Formula
Percentage change = [(74 - 664) / 664] x 100
Subtract the new number by the original number
74 - 664 = -590
-590 ÷ 664 = -0.8885542168674698
-0.8885542168674698 x 100 = -88.86%