-20.5% is the change from 517 to 411
Calculation steps:
[( 411 - 517 ) ÷ 517] x 100 = -20.5%
Formula
Percentage change = [(411 - 517) / 517] x 100
Subtract the new number by the original number
411 - 517 = -106
-106 ÷ 517 = -0.20502901353965183
-0.20502901353965183 x 100 = -20.5%