-2.9% is the change from 587 to 570
Calculation steps:
[( 570 - 587 ) ÷ 587] x 100 = -2.9%
Formula
Percentage change = [(570 - 587) / 587] x 100
Subtract the new number by the original number
570 - 587 = -17
-17 ÷ 587 = -0.028960817717206135
-0.028960817717206135 x 100 = -2.9%