-89.77% is the change from 342 to 35
Calculation steps:
[( 35 - 342 ) ÷ 342] x 100 = -89.77%
Formula
Percentage change = [(35 - 342) / 342] x 100
Subtract the new number by the original number
35 - 342 = -307
-307 ÷ 342 = -0.8976608187134503
-0.8976608187134503 x 100 = -89.77%