-70.47% is the change from 579 to 171
Calculation steps:
[( 171 - 579 ) ÷ 579] x 100 = -70.47%
Formula
Percentage change = [(171 - 579) / 579] x 100
Subtract the new number by the original number
171 - 579 = -408
-408 ÷ 579 = -0.7046632124352331
-0.7046632124352331 x 100 = -70.47%