-60.63% is the change from 127 to 50
Calculation steps:
[( 50 - 127 ) ÷ 127] x 100 = -60.63%
Formula
Percentage change = [(50 - 127) / 127] x 100
Subtract the new number by the original number
50 - 127 = -77
-77 ÷ 127 = -0.6062992125984252
-0.6062992125984252 x 100 = -60.63%