-37.01% is the change from 770 to 485
Calculation steps:
[( 485 - 770 ) ÷ 770] x 100 = -37.01%
Formula
Percentage change = [(485 - 770) / 770] x 100
Subtract the new number by the original number
485 - 770 = -285
-285 ÷ 770 = -0.37012987012987014
-0.37012987012987014 x 100 = -37.01%