-71.85% is the change from 611 to 172
Calculation steps:
[( 172 - 611 ) ÷ 611] x 100 = -71.85%
Formula
Percentage change = [(172 - 611) / 611] x 100
Subtract the new number by the original number
172 - 611 = -439
-439 ÷ 611 = -0.7184942716857611
-0.7184942716857611 x 100 = -71.85%