-34.2% is the change from 766 to 504
Calculation steps:
[( 504 - 766 ) ÷ 766] x 100 = -34.2%
Formula
Percentage change = [(504 - 766) / 766] x 100
Subtract the new number by the original number
504 - 766 = -262
-262 ÷ 766 = -0.34203655352480417
-0.34203655352480417 x 100 = -34.2%