-77.14% is the change from 678 to 155
Calculation steps:
[( 155 - 678 ) ÷ 678] x 100 = -77.14%
Formula
Percentage change = [(155 - 678) / 678] x 100
Subtract the new number by the original number
155 - 678 = -523
-523 ÷ 678 = -0.7713864306784661
-0.7713864306784661 x 100 = -77.14%