-60.7% is the change from 1000 to 393
Calculation steps:
[( 393 - 1000 ) ÷ 1000] x 100 = -60.7%
Formula
Percentage change = [(393 - 1000) / 1000] x 100
Subtract the new number by the original number
393 - 1000 = -607
-607 ÷ 1000 = -0.607
-0.607 x 100 = -60.7%