-45.56% is the change from 777 to 423
Calculation steps:
[( 423 - 777 ) ÷ 777] x 100 = -45.56%
Formula
Percentage change = [(423 - 777) / 777] x 100
Subtract the new number by the original number
423 - 777 = -354
-354 ÷ 777 = -0.4555984555984556
-0.4555984555984556 x 100 = -45.56%