-51.29% is the change from 349 to 170
Calculation steps:
[( 170 - 349 ) ÷ 349] x 100 = -51.29%
Formula
Percentage change = [(170 - 349) / 349] x 100
Subtract the new number by the original number
170 - 349 = -179
-179 ÷ 349 = -0.5128939828080229
-0.5128939828080229 x 100 = -51.29%