-83.53% is the change from 346 to 57
Calculation steps:
[( 57 - 346 ) ÷ 346] x 100 = -83.53%
Formula
Percentage change = [(57 - 346) / 346] x 100
Subtract the new number by the original number
57 - 346 = -289
-289 ÷ 346 = -0.8352601156069365
-0.8352601156069365 x 100 = -83.53%