-51.01% is the change from 347 to 170
Calculation steps:
[( 170 - 347 ) ÷ 347] x 100 = -51.01%
Formula
Percentage change = [(170 - 347) / 347] x 100
Subtract the new number by the original number
170 - 347 = -177
-177 ÷ 347 = -0.5100864553314121
-0.5100864553314121 x 100 = -51.01%