-51.2% is the change from 1000 to 488
Calculation steps:
[( 488 - 1000 ) ÷ 1000] x 100 = -51.2%
Formula
Percentage change = [(488 - 1000) / 1000] x 100
Subtract the new number by the original number
488 - 1000 = -512
-512 ÷ 1000 = -0.512
-0.512 x 100 = -51.2%