-70.59% is the change from 578 to 170
Calculation steps:
[( 170 - 578 ) ÷ 578] x 100 = -70.59%
Formula
Percentage change = [(170 - 578) / 578] x 100
Subtract the new number by the original number
170 - 578 = -408
-408 ÷ 578 = -0.7058823529411765
-0.7058823529411765 x 100 = -70.59%