-70.94% is the change from 678 to 197
Calculation steps:
[( 197 - 678 ) ÷ 678] x 100 = -70.94%
Formula
Percentage change = [(197 - 678) / 678] x 100
Subtract the new number by the original number
197 - 678 = -481
-481 ÷ 678 = -0.7094395280235988
-0.7094395280235988 x 100 = -70.94%