-66% is the change from 753 to 256
Calculation steps:
[( 256 - 753 ) ÷ 753] x 100 = -66%
Formula
Percentage change = [(256 - 753) / 753] x 100
Subtract the new number by the original number
256 - 753 = -497
-497 ÷ 753 = -0.6600265604249668
-0.6600265604249668 x 100 = -66%