-79.84% is the change from 129 to 26
Calculation steps:
[( 26 - 129 ) ÷ 129] x 100 = -79.84%
Formula
Percentage change = [(26 - 129) / 129] x 100
Subtract the new number by the original number
26 - 129 = -103
-103 ÷ 129 = -0.7984496124031008
-0.7984496124031008 x 100 = -79.84%