-53.54% is the change from 551 to 256
Calculation steps:
[( 256 - 551 ) ÷ 551] x 100 = -53.54%
Formula
Percentage change = [(256 - 551) / 551] x 100
Subtract the new number by the original number
256 - 551 = -295
-295 ÷ 551 = -0.5353901996370236
-0.5353901996370236 x 100 = -53.54%