-76.25% is the change from 678 to 161
Calculation steps:
[( 161 - 678 ) ÷ 678] x 100 = -76.25%
Formula
Percentage change = [(161 - 678) / 678] x 100
Subtract the new number by the original number
161 - 678 = -517
-517 ÷ 678 = -0.7625368731563422
-0.7625368731563422 x 100 = -76.25%