-35.64% is the change from 550 to 354
Calculation steps:
[( 354 - 550 ) ÷ 550] x 100 = -35.64%
Formula
Percentage change = [(354 - 550) / 550] x 100
Subtract the new number by the original number
354 - 550 = -196
-196 ÷ 550 = -0.3563636363636364
-0.3563636363636364 x 100 = -35.64%