-41.39% is the change from 517 to 303
Calculation steps:
[( 303 - 517 ) ÷ 517] x 100 = -41.39%
Formula
Percentage change = [(303 - 517) / 517] x 100
Subtract the new number by the original number
303 - 517 = -214
-214 ÷ 517 = -0.41392649903288203
-0.41392649903288203 x 100 = -41.39%