-83.04% is the change from 342 to 58
Calculation steps:
[( 58 - 342 ) ÷ 342] x 100 = -83.04%
Formula
Percentage change = [(58 - 342) / 342] x 100
Subtract the new number by the original number
58 - 342 = -284
-284 ÷ 342 = -0.8304093567251462
-0.8304093567251462 x 100 = -83.04%