-52.22% is the change from 517 to 247
Calculation steps:
[( 247 - 517 ) ÷ 517] x 100 = -52.22%
Formula
Percentage change = [(247 - 517) / 517] x 100
Subtract the new number by the original number
247 - 517 = -270
-270 ÷ 517 = -0.5222437137330754
-0.5222437137330754 x 100 = -52.22%