-49.48% is the change from 766 to 387
Calculation steps:
[( 387 - 766 ) ÷ 766] x 100 = -49.48%
Formula
Percentage change = [(387 - 766) / 766] x 100
Subtract the new number by the original number
387 - 766 = -379
-379 ÷ 766 = -0.49477806788511747
-0.49477806788511747 x 100 = -49.48%