-43.51% is the change from 770 to 435
Calculation steps:
[( 435 - 770 ) ÷ 770] x 100 = -43.51%
Formula
Percentage change = [(435 - 770) / 770] x 100
Subtract the new number by the original number
435 - 770 = -335
-335 ÷ 770 = -0.43506493506493504
-0.43506493506493504 x 100 = -43.51%