-93.13% is the change from 670 to 46
Calculation steps:
[( 46 - 670 ) ÷ 670] x 100 = -93.13%
Formula
Percentage change = [(46 - 670) / 670] x 100
Subtract the new number by the original number
46 - 670 = -624
-624 ÷ 670 = -0.9313432835820895
-0.9313432835820895 x 100 = -93.13%