-90.86% is the change from 547 to 50
Calculation steps:
[( 50 - 547 ) ÷ 547] x 100 = -90.86%
Formula
Percentage change = [(50 - 547) / 547] x 100
Subtract the new number by the original number
50 - 547 = -497
-497 ÷ 547 = -0.9085923217550275
-0.9085923217550275 x 100 = -90.86%