-80.71% is the change from 254 to 49
Calculation steps:
[( 49 - 254 ) ÷ 254] x 100 = -80.71%
Formula
Percentage change = [(49 - 254) / 254] x 100
Subtract the new number by the original number
49 - 254 = -205
-205 ÷ 254 = -0.8070866141732284
-0.8070866141732284 x 100 = -80.71%