-51.04% is the change from 770 to 377
Calculation steps:
[( 377 - 770 ) ÷ 770] x 100 = -51.04%
Formula
Percentage change = [(377 - 770) / 770] x 100
Subtract the new number by the original number
377 - 770 = -393
-393 ÷ 770 = -0.5103896103896104
-0.5103896103896104 x 100 = -51.04%