-49.94% is the change from 777 to 389
Calculation steps:
[( 389 - 777 ) ÷ 777] x 100 = -49.94%
Formula
Percentage change = [(389 - 777) / 777] x 100
Subtract the new number by the original number
389 - 777 = -388
-388 ÷ 777 = -0.49935649935649934
-0.49935649935649934 x 100 = -49.94%