-97.45% is the change from 550 to 14
Calculation steps:
[( 14 - 550 ) ÷ 550] x 100 = -97.45%
Formula
Percentage change = [(14 - 550) / 550] x 100
Subtract the new number by the original number
14 - 550 = -536
-536 ÷ 550 = -0.9745454545454545
-0.9745454545454545 x 100 = -97.45%