-2.5% is the change from 601 to 586
Calculation steps:
[( 586 - 601 ) ÷ 601] x 100 = -2.5%
Formula
Percentage change = [(586 - 601) / 601] x 100
Subtract the new number by the original number
586 - 601 = -15
-15 ÷ 601 = -0.024958402662229616
-0.024958402662229616 x 100 = -2.5%