-42.84% is the change from 670 to 383
Calculation steps:
[( 383 - 670 ) ÷ 670] x 100 = -42.84%
Formula
Percentage change = [(383 - 670) / 670] x 100
Subtract the new number by the original number
383 - 670 = -287
-287 ÷ 670 = -0.42835820895522386
-0.42835820895522386 x 100 = -42.84%