-51.4% is the change from 356 to 173
Calculation steps:
[( 173 - 356 ) ÷ 356] x 100 = -51.4%
Formula
Percentage change = [(173 - 356) / 356] x 100
Subtract the new number by the original number
173 - 356 = -183
-183 ÷ 356 = -0.5140449438202247
-0.5140449438202247 x 100 = -51.4%