-48.16% is the change from 517 to 268
Calculation steps:
[( 268 - 517 ) ÷ 517] x 100 = -48.16%
Formula
Percentage change = [(268 - 517) / 517] x 100
Subtract the new number by the original number
268 - 517 = -249
-249 ÷ 517 = -0.4816247582205029
-0.4816247582205029 x 100 = -48.16%