-65.57% is the change from 517 to 178
Calculation steps:
[( 178 - 517 ) ÷ 517] x 100 = -65.57%
Formula
Percentage change = [(178 - 517) / 517] x 100
Subtract the new number by the original number
178 - 517 = -339
-339 ÷ 517 = -0.655705996131528
-0.655705996131528 x 100 = -65.57%