-51.57% is the change from 351 to 170
Calculation steps:
[( 170 - 351 ) ÷ 351] x 100 = -51.57%
Formula
Percentage change = [(170 - 351) / 351] x 100
Subtract the new number by the original number
170 - 351 = -181
-181 ÷ 351 = -0.5156695156695157
-0.5156695156695157 x 100 = -51.57%