-33.94% is the change from 766 to 506
Calculation steps:
[( 506 - 766 ) ÷ 766] x 100 = -33.94%
Formula
Percentage change = [(506 - 766) / 766] x 100
Subtract the new number by the original number
506 - 766 = -260
-260 ÷ 766 = -0.3394255874673629
-0.3394255874673629 x 100 = -33.94%