-80.46% is the change from 517 to 101
Calculation steps:
[( 101 - 517 ) ÷ 517] x 100 = -80.46%
Formula
Percentage change = [(101 - 517) / 517] x 100
Subtract the new number by the original number
101 - 517 = -416
-416 ÷ 517 = -0.804642166344294
-0.804642166344294 x 100 = -80.46%