-96.51% is the change from 172 to 6
Calculation steps:
[( 6 - 172 ) ÷ 172] x 100 = -96.51%
Formula
Percentage change = [(6 - 172) / 172] x 100
Subtract the new number by the original number
6 - 172 = -166
-166 ÷ 172 = -0.9651162790697675
-0.9651162790697675 x 100 = -96.51%