-10.65% is the change from 620 to 554
Calculation steps:
[( 554 - 620 ) ÷ 620] x 100 = -10.65%
Formula
Percentage change = [(554 - 620) / 620] x 100
Subtract the new number by the original number
554 - 620 = -66
-66 ÷ 620 = -0.1064516129032258
-0.1064516129032258 x 100 = -10.65%