-73.54% is the change from 189 to 50
Calculation steps:
[( 50 - 189 ) ÷ 189] x 100 = -73.54%
Formula
Percentage change = [(50 - 189) / 189] x 100
Subtract the new number by the original number
50 - 189 = -139
-139 ÷ 189 = -0.7354497354497355
-0.7354497354497355 x 100 = -73.54%