-56.46% is the change from 588 to 256
Calculation steps:
[( 256 - 588 ) ÷ 588] x 100 = -56.46%
Formula
Percentage change = [(256 - 588) / 588] x 100
Subtract the new number by the original number
256 - 588 = -332
-332 ÷ 588 = -0.564625850340136
-0.564625850340136 x 100 = -56.46%