-10.28% is the change from 613 to 550
Calculation steps:
[( 550 - 613 ) ÷ 613] x 100 = -10.28%
Formula
Percentage change = [(550 - 613) / 613] x 100
Subtract the new number by the original number
550 - 613 = -63
-63 ÷ 613 = -0.10277324632952692
-0.10277324632952692 x 100 = -10.28%