-66.09% is the change from 755 to 256
Calculation steps:
[( 256 - 755 ) ÷ 755] x 100 = -66.09%
Formula
Percentage change = [(256 - 755) / 755] x 100
Subtract the new number by the original number
256 - 755 = -499
-499 ÷ 755 = -0.6609271523178808
-0.6609271523178808 x 100 = -66.09%