-60.15% is the change from 517 to 206
Calculation steps:
[( 206 - 517 ) ÷ 517] x 100 = -60.15%
Formula
Percentage change = [(206 - 517) / 517] x 100
Subtract the new number by the original number
206 - 517 = -311
-311 ÷ 517 = -0.6015473887814313
-0.6015473887814313 x 100 = -60.15%