-40.35% is the change from 922 to 550
Calculation steps:
[( 550 - 922 ) ÷ 922] x 100 = -40.35%
Formula
Percentage change = [(550 - 922) / 922] x 100
Subtract the new number by the original number
550 - 922 = -372
-372 ÷ 922 = -0.403470715835141
-0.403470715835141 x 100 = -40.35%