-48.52% is the change from 777 to 400
Calculation steps:
[( 400 - 777 ) ÷ 777] x 100 = -48.52%
Formula
Percentage change = [(400 - 777) / 777] x 100
Subtract the new number by the original number
400 - 777 = -377
-377 ÷ 777 = -0.4851994851994852
-0.4851994851994852 x 100 = -48.52%