-90.27% is the change from 514 to 50
Calculation steps:
[( 50 - 514 ) ÷ 514] x 100 = -90.27%
Formula
Percentage change = [(50 - 514) / 514] x 100
Subtract the new number by the original number
50 - 514 = -464
-464 ÷ 514 = -0.9027237354085603
-0.9027237354085603 x 100 = -90.27%