-32.44% is the change from 820 to 554
Calculation steps:
[( 554 - 820 ) ÷ 820] x 100 = -32.44%
Formula
Percentage change = [(554 - 820) / 820] x 100
Subtract the new number by the original number
554 - 820 = -266
-266 ÷ 820 = -0.32439024390243903
-0.32439024390243903 x 100 = -32.44%