-61.42% is the change from 127 to 49
Calculation steps:
[( 49 - 127 ) ÷ 127] x 100 = -61.42%
Formula
Percentage change = [(49 - 127) / 127] x 100
Subtract the new number by the original number
49 - 127 = -78
-78 ÷ 127 = -0.6141732283464567
-0.6141732283464567 x 100 = -61.42%