-76.23% is the change from 345 to 82
Calculation steps:
[( 82 - 345 ) ÷ 345] x 100 = -76.23%
Formula
Percentage change = [(82 - 345) / 345] x 100
Subtract the new number by the original number
82 - 345 = -263
-263 ÷ 345 = -0.7623188405797101
-0.7623188405797101 x 100 = -76.23%