-94.43% is the change from 664 to 37
Calculation steps:
[( 37 - 664 ) ÷ 664] x 100 = -94.43%
Formula
Percentage change = [(37 - 664) / 664] x 100
Subtract the new number by the original number
37 - 664 = -627
-627 ÷ 664 = -0.9442771084337349
-0.9442771084337349 x 100 = -94.43%