-80.06% is the change from 336 to 67
Calculation steps:
[( 67 - 336 ) ÷ 336] x 100 = -80.06%
Formula
Percentage change = [(67 - 336) / 336] x 100
Subtract the new number by the original number
67 - 336 = -269
-269 ÷ 336 = -0.8005952380952381
-0.8005952380952381 x 100 = -80.06%