-41.4% is the change from 1000 to 586
Calculation steps:
[( 586 - 1000 ) ÷ 1000] x 100 = -41.4%
Formula
Percentage change = [(586 - 1000) / 1000] x 100
Subtract the new number by the original number
586 - 1000 = -414
-414 ÷ 1000 = -0.414
-0.414 x 100 = -41.4%