-34.06% is the change from 775 to 511
Calculation steps:
[( 511 - 775 ) ÷ 775] x 100 = -34.06%
Formula
Percentage change = [(511 - 775) / 775] x 100
Subtract the new number by the original number
511 - 775 = -264
-264 ÷ 775 = -0.3406451612903226
-0.3406451612903226 x 100 = -34.06%