-57.24% is the change from 919 to 393
Calculation steps:
[( 393 - 919 ) ÷ 919] x 100 = -57.24%
Formula
Percentage change = [(393 - 919) / 919] x 100
Subtract the new number by the original number
393 - 919 = -526
-526 ÷ 919 = -0.5723612622415669
-0.5723612622415669 x 100 = -57.24%