-93.88% is the change from 670 to 41
Calculation steps:
[( 41 - 670 ) ÷ 670] x 100 = -93.88%
Formula
Percentage change = [(41 - 670) / 670] x 100
Subtract the new number by the original number
41 - 670 = -629
-629 ÷ 670 = -0.9388059701492537
-0.9388059701492537 x 100 = -93.88%