-51% is the change from 996 to 488
Calculation steps:
[( 488 - 996 ) ÷ 996] x 100 = -51%
Formula
Percentage change = [(488 - 996) / 996] x 100
Subtract the new number by the original number
488 - 996 = -508
-508 ÷ 996 = -0.5100401606425703
-0.5100401606425703 x 100 = -51%