-36.88% is the change from 770 to 486
Calculation steps:
[( 486 - 770 ) ÷ 770] x 100 = -36.88%
Formula
Percentage change = [(486 - 770) / 770] x 100
Subtract the new number by the original number
486 - 770 = -284
-284 ÷ 770 = -0.36883116883116884
-0.36883116883116884 x 100 = -36.88%