-94.73% is the change from 664 to 35
Calculation steps:
[( 35 - 664 ) ÷ 664] x 100 = -94.73%
Formula
Percentage change = [(35 - 664) / 664] x 100
Subtract the new number by the original number
35 - 664 = -629
-629 ÷ 664 = -0.947289156626506
-0.947289156626506 x 100 = -94.73%