-98.81% is the change from 168 to 2
Calculation steps:
[( 2 - 168 ) ÷ 168] x 100 = -98.81%
Formula
Percentage change = [(2 - 168) / 168] x 100
Subtract the new number by the original number
2 - 168 = -166
-166 ÷ 168 = -0.9880952380952381
-0.9880952380952381 x 100 = -98.81%