-94.46% is the change from 343 to 19
Calculation steps:
[( 19 - 343 ) ÷ 343] x 100 = -94.46%
Formula
Percentage change = [(19 - 343) / 343] x 100
Subtract the new number by the original number
19 - 343 = -324
-324 ÷ 343 = -0.9446064139941691
-0.9446064139941691 x 100 = -94.46%