-33.41% is the change from 826 to 550
Calculation steps:
[( 550 - 826 ) ÷ 826] x 100 = -33.41%
Formula
Percentage change = [(550 - 826) / 826] x 100
Subtract the new number by the original number
550 - 826 = -276
-276 ÷ 826 = -0.3341404358353511
-0.3341404358353511 x 100 = -33.41%