-51.72% is the change from 988 to 477
Calculation steps:
[( 477 - 988 ) ÷ 988] x 100 = -51.72%
Formula
Percentage change = [(477 - 988) / 988] x 100
Subtract the new number by the original number
477 - 988 = -511
-511 ÷ 988 = -0.5172064777327935
-0.5172064777327935 x 100 = -51.72%