-25.47% is the change from 691 to 515
Calculation steps:
[( 515 - 691 ) ÷ 691] x 100 = -25.47%
Formula
Percentage change = [(515 - 691) / 691] x 100
Subtract the new number by the original number
515 - 691 = -176
-176 ÷ 691 = -0.25470332850940663
-0.25470332850940663 x 100 = -25.47%