-98.72% is the change from 156 to 2
Calculation steps:
[( 2 - 156 ) ÷ 156] x 100 = -98.72%
Formula
Percentage change = [(2 - 156) / 156] x 100
Subtract the new number by the original number
2 - 156 = -154
-154 ÷ 156 = -0.9871794871794872
-0.9871794871794872 x 100 = -98.72%