-42.08% is the change from 777 to 450
Calculation steps:
[( 450 - 777 ) ÷ 777] x 100 = -42.08%
Formula
Percentage change = [(450 - 777) / 777] x 100
Subtract the new number by the original number
450 - 777 = -327
-327 ÷ 777 = -0.42084942084942084
-0.42084942084942084 x 100 = -42.08%