-43.12% is the change from 770 to 438
Calculation steps:
[( 438 - 770 ) ÷ 770] x 100 = -43.12%
Formula
Percentage change = [(438 - 770) / 770] x 100
Subtract the new number by the original number
438 - 770 = -332
-332 ÷ 770 = -0.43116883116883115
-0.43116883116883115 x 100 = -43.12%