-32.77% is the change from 766 to 515
Calculation steps:
[( 515 - 766 ) ÷ 766] x 100 = -32.77%
Formula
Percentage change = [(515 - 766) / 766] x 100
Subtract the new number by the original number
515 - 766 = -251
-251 ÷ 766 = -0.3276762402088773
-0.3276762402088773 x 100 = -32.77%