-70.42% is the change from 578 to 171
Calculation steps:
[( 171 - 578 ) ÷ 578] x 100 = -70.42%
Formula
Percentage change = [(171 - 578) / 578] x 100
Subtract the new number by the original number
171 - 578 = -407
-407 ÷ 578 = -0.7041522491349481
-0.7041522491349481 x 100 = -70.42%