-68.39% is the change from 155 to 49
Calculation steps:
[( 49 - 155 ) ÷ 155] x 100 = -68.39%
Formula
Percentage change = [(49 - 155) / 155] x 100
Subtract the new number by the original number
49 - 155 = -106
-106 ÷ 155 = -0.6838709677419355
-0.6838709677419355 x 100 = -68.39%