-51.36% is the change from 993 to 483
Calculation steps:
[( 483 - 993 ) ÷ 993] x 100 = -51.36%
Formula
Percentage change = [(483 - 993) / 993] x 100
Subtract the new number by the original number
483 - 993 = -510
-510 ÷ 993 = -0.513595166163142
-0.513595166163142 x 100 = -51.36%