-80.29% is the change from 345 to 68
Calculation steps:
[( 68 - 345 ) ÷ 345] x 100 = -80.29%
Formula
Percentage change = [(68 - 345) / 345] x 100
Subtract the new number by the original number
68 - 345 = -277
-277 ÷ 345 = -0.8028985507246377
-0.8028985507246377 x 100 = -80.29%