-67.49% is the change from 766 to 249
Calculation steps:
[( 249 - 766 ) ÷ 766] x 100 = -67.49%
Formula
Percentage change = [(249 - 766) / 766] x 100
Subtract the new number by the original number
249 - 766 = -517
-517 ÷ 766 = -0.674934725848564
-0.674934725848564 x 100 = -67.49%