-57.27% is the change from 770 to 329
Calculation steps:
[( 329 - 770 ) ÷ 770] x 100 = -57.27%
Formula
Percentage change = [(329 - 770) / 770] x 100
Subtract the new number by the original number
329 - 770 = -441
-441 ÷ 770 = -0.5727272727272728
-0.5727272727272728 x 100 = -57.27%