-88.21% is the change from 424 to 50
Calculation steps:
[( 50 - 424 ) ÷ 424] x 100 = -88.21%
Formula
Percentage change = [(50 - 424) / 424] x 100
Subtract the new number by the original number
50 - 424 = -374
-374 ÷ 424 = -0.8820754716981132
-0.8820754716981132 x 100 = -88.21%