-25.45% is the change from 550 to 410
Calculation steps:
[( 410 - 550 ) ÷ 550] x 100 = -25.45%
Formula
Percentage change = [(410 - 550) / 550] x 100
Subtract the new number by the original number
410 - 550 = -140
-140 ÷ 550 = -0.2545454545454545
-0.2545454545454545 x 100 = -25.45%