-54.95% is the change from 555 to 250
Calculation steps:
[( 250 - 555 ) ÷ 555] x 100 = -54.95%
Formula
Percentage change = [(250 - 555) / 555] x 100
Subtract the new number by the original number
250 - 555 = -305
-305 ÷ 555 = -0.5495495495495496
-0.5495495495495496 x 100 = -54.95%