-12.64% is the change from 617 to 539
Calculation steps:
[( 539 - 617 ) ÷ 617] x 100 = -12.64%
Formula
Percentage change = [(539 - 617) / 617] x 100
Subtract the new number by the original number
539 - 617 = -78
-78 ÷ 617 = -0.12641815235008103
-0.12641815235008103 x 100 = -12.64%