-30.05% is the change from 559 to 391
Calculation steps:
[( 391 - 559 ) ÷ 559] x 100 = -30.05%
Formula
Percentage change = [(391 - 559) / 559] x 100
Subtract the new number by the original number
391 - 559 = -168
-168 ÷ 559 = -0.3005366726296959
-0.3005366726296959 x 100 = -30.05%