-66.96% is the change from 578 to 191
Calculation steps:
[( 191 - 578 ) ÷ 578] x 100 = -66.96%
Formula
Percentage change = [(191 - 578) / 578] x 100
Subtract the new number by the original number
191 - 578 = -387
-387 ÷ 578 = -0.6695501730103807
-0.6695501730103807 x 100 = -66.96%