-94.8% is the change from 346 to 18
Calculation steps:
[( 18 - 346 ) ÷ 346] x 100 = -94.8%
Formula
Percentage change = [(18 - 346) / 346] x 100
Subtract the new number by the original number
18 - 346 = -328
-328 ÷ 346 = -0.9479768786127167
-0.9479768786127167 x 100 = -94.8%