-88.8% is the change from 643 to 72
Calculation steps:
[( 72 - 643 ) ÷ 643] x 100 = -88.8%
Formula
Percentage change = [(72 - 643) / 643] x 100
Subtract the new number by the original number
72 - 643 = -571
-571 ÷ 643 = -0.8880248833592534
-0.8880248833592534 x 100 = -88.8%