-16.7% is the change from 515 to 429
Calculation steps:
[( 429 - 515 ) ÷ 515] x 100 = -16.7%
Formula
Percentage change = [(429 - 515) / 515] x 100
Subtract the new number by the original number
429 - 515 = -86
-86 ÷ 515 = -0.1669902912621359
-0.1669902912621359 x 100 = -16.7%