-60.2% is the change from 1000 to 398
Calculation steps:
[( 398 - 1000 ) ÷ 1000] x 100 = -60.2%
Formula
Percentage change = [(398 - 1000) / 1000] x 100
Subtract the new number by the original number
398 - 1000 = -602
-602 ÷ 1000 = -0.602
-0.602 x 100 = -60.2%