-51.9% is the change from 553 to 266
Calculation steps:
[( 266 - 553 ) ÷ 553] x 100 = -51.9%
Formula
Percentage change = [(266 - 553) / 553] x 100
Subtract the new number by the original number
266 - 553 = -287
-287 ÷ 553 = -0.5189873417721519
-0.5189873417721519 x 100 = -51.9%