-57.89% is the change from 608 to 256
Calculation steps:
[( 256 - 608 ) ÷ 608] x 100 = -57.89%
Formula
Percentage change = [(256 - 608) / 608] x 100
Subtract the new number by the original number
256 - 608 = -352
-352 ÷ 608 = -0.5789473684210527
-0.5789473684210527 x 100 = -57.89%