-73.95% is the change from 668 to 174
Calculation steps:
[( 174 - 668 ) ÷ 668] x 100 = -73.95%
Formula
Percentage change = [(174 - 668) / 668] x 100
Subtract the new number by the original number
174 - 668 = -494
-494 ÷ 668 = -0.7395209580838323
-0.7395209580838323 x 100 = -73.95%