-56.3% is the change from 1000 to 437
Calculation steps:
[( 437 - 1000 ) ÷ 1000] x 100 = -56.3%
Formula
Percentage change = [(437 - 1000) / 1000] x 100
Subtract the new number by the original number
437 - 1000 = -563
-563 ÷ 1000 = -0.563
-0.563 x 100 = -56.3%