-38.96% is the change from 770 to 470
Calculation steps:
[( 470 - 770 ) ÷ 770] x 100 = -38.96%
Formula
Percentage change = [(470 - 770) / 770] x 100
Subtract the new number by the original number
470 - 770 = -300
-300 ÷ 770 = -0.38961038961038963
-0.38961038961038963 x 100 = -38.96%