-74.03% is the change from 670 to 174
Calculation steps:
[( 174 - 670 ) ÷ 670] x 100 = -74.03%
Formula
Percentage change = [(174 - 670) / 670] x 100
Subtract the new number by the original number
174 - 670 = -496
-496 ÷ 670 = -0.7402985074626866
-0.7402985074626866 x 100 = -74.03%