-32.43% is the change from 814 to 550
Calculation steps:
[( 550 - 814 ) ÷ 814] x 100 = -32.43%
Formula
Percentage change = [(550 - 814) / 814] x 100
Subtract the new number by the original number
550 - 814 = -264
-264 ÷ 814 = -0.32432432432432434
-0.32432432432432434 x 100 = -32.43%