-33.8% is the change from 781 to 517
Calculation steps:
[( 517 - 781 ) ÷ 781] x 100 = -33.8%
Formula
Percentage change = [(517 - 781) / 781] x 100
Subtract the new number by the original number
517 - 781 = -264
-264 ÷ 781 = -0.3380281690140845
-0.3380281690140845 x 100 = -33.8%