-16.63% is the change from 517 to 431
Calculation steps:
[( 431 - 517 ) ÷ 517] x 100 = -16.63%
Formula
Percentage change = [(431 - 517) / 517] x 100
Subtract the new number by the original number
431 - 517 = -86
-86 ÷ 517 = -0.16634429400386846
-0.16634429400386846 x 100 = -16.63%