-40.83% is the change from 169 to 100
Calculation steps:
[( 100 - 169 ) ÷ 169] x 100 = -40.83%
Formula
Percentage change = [(100 - 169) / 169] x 100
Subtract the new number by the original number
100 - 169 = -69
-69 ÷ 169 = -0.40828402366863903
-0.40828402366863903 x 100 = -40.83%