-33.89% is the change from 779 to 515
Calculation steps:
[( 515 - 779 ) ÷ 779] x 100 = -33.89%
Formula
Percentage change = [(515 - 779) / 779] x 100
Subtract the new number by the original number
515 - 779 = -264
-264 ÷ 779 = -0.33889602053915274
-0.33889602053915274 x 100 = -33.89%