-73.65% is the change from 611 to 161
Calculation steps:
[( 161 - 611 ) ÷ 611] x 100 = -73.65%
Formula
Percentage change = [(161 - 611) / 611] x 100
Subtract the new number by the original number
161 - 611 = -450
-450 ÷ 611 = -0.7364975450081833
-0.7364975450081833 x 100 = -73.65%