-54.77% is the change from 555 to 251
Calculation steps:
[( 251 - 555 ) ÷ 555] x 100 = -54.77%
Formula
Percentage change = [(251 - 555) / 555] x 100
Subtract the new number by the original number
251 - 555 = -304
-304 ÷ 555 = -0.5477477477477477
-0.5477477477477477 x 100 = -54.77%