-73.82% is the change from 191 to 50
Calculation steps:
[( 50 - 191 ) ÷ 191] x 100 = -73.82%
Formula
Percentage change = [(50 - 191) / 191] x 100
Subtract the new number by the original number
50 - 191 = -141
-141 ÷ 191 = -0.7382198952879581
-0.7382198952879581 x 100 = -73.82%