-49.42% is the change from 771 to 390
Calculation steps:
[( 390 - 771 ) ÷ 771] x 100 = -49.42%
Formula
Percentage change = [(390 - 771) / 771] x 100
Subtract the new number by the original number
390 - 771 = -381
-381 ÷ 771 = -0.49416342412451364
-0.49416342412451364 x 100 = -49.42%