-91.42% is the change from 583 to 50
Calculation steps:
[( 50 - 583 ) ÷ 583] x 100 = -91.42%
Formula
Percentage change = [(50 - 583) / 583] x 100
Subtract the new number by the original number
50 - 583 = -533
-533 ÷ 583 = -0.9142367066895368
-0.9142367066895368 x 100 = -91.42%