-64.74% is the change from 173 to 61
Calculation steps:
[( 61 - 173 ) ÷ 173] x 100 = -64.74%
Formula
Percentage change = [(61 - 173) / 173] x 100
Subtract the new number by the original number
61 - 173 = -112
-112 ÷ 173 = -0.6473988439306358
-0.6473988439306358 x 100 = -64.74%