-66.4% is the change from 762 to 256
Calculation steps:
[( 256 - 762 ) ÷ 762] x 100 = -66.4%
Formula
Percentage change = [(256 - 762) / 762] x 100
Subtract the new number by the original number
256 - 762 = -506
-506 ÷ 762 = -0.6640419947506562
-0.6640419947506562 x 100 = -66.4%