-51.36% is the change from 551 to 268
Calculation steps:
[( 268 - 551 ) ÷ 551] x 100 = -51.36%
Formula
Percentage change = [(268 - 551) / 551] x 100
Subtract the new number by the original number
268 - 551 = -283
-283 ÷ 551 = -0.5136116152450091
-0.5136116152450091 x 100 = -51.36%