-51.11% is the change from 990 to 484
Calculation steps:
[( 484 - 990 ) ÷ 990] x 100 = -51.11%
Formula
Percentage change = [(484 - 990) / 990] x 100
Subtract the new number by the original number
484 - 990 = -506
-506 ÷ 990 = -0.5111111111111111
-0.5111111111111111 x 100 = -51.11%