-83.99% is the change from 968 to 155
Calculation steps:
[( 155 - 968 ) ÷ 968] x 100 = -83.99%
Formula
Percentage change = [(155 - 968) / 968] x 100
Subtract the new number by the original number
155 - 968 = -813
-813 ÷ 968 = -0.8398760330578512
-0.8398760330578512 x 100 = -83.99%