-31.96% is the change from 751 to 511
Calculation steps:
[( 511 - 751 ) ÷ 751] x 100 = -31.96%
Formula
Percentage change = [(511 - 751) / 751] x 100
Subtract the new number by the original number
511 - 751 = -240
-240 ÷ 751 = -0.3195739014647137
-0.3195739014647137 x 100 = -31.96%