-26.66% is the change from 694 to 509
Calculation steps:
[( 509 - 694 ) ÷ 694] x 100 = -26.66%
Formula
Percentage change = [(509 - 694) / 694] x 100
Subtract the new number by the original number
509 - 694 = -185
-185 ÷ 694 = -0.2665706051873199
-0.2665706051873199 x 100 = -26.66%