-51.2% is the change from 996 to 486
Calculation steps:
[( 486 - 996 ) ÷ 996] x 100 = -51.2%
Formula
Percentage change = [(486 - 996) / 996] x 100
Subtract the new number by the original number
486 - 996 = -510
-510 ÷ 996 = -0.5120481927710844
-0.5120481927710844 x 100 = -51.2%