-50.32% is the change from 771 to 383
Calculation steps:
[( 383 - 771 ) ÷ 771] x 100 = -50.32%
Formula
Percentage change = [(383 - 771) / 771] x 100
Subtract the new number by the original number
383 - 771 = -388
-388 ÷ 771 = -0.503242542153048
-0.503242542153048 x 100 = -50.32%