-54.3% is the change from 1000 to 457
Calculation steps:
[( 457 - 1000 ) ÷ 1000] x 100 = -54.3%
Formula
Percentage change = [(457 - 1000) / 1000] x 100
Subtract the new number by the original number
457 - 1000 = -543
-543 ÷ 1000 = -0.543
-0.543 x 100 = -54.3%