-68.88% is the change from 678 to 211
Calculation steps:
[( 211 - 678 ) ÷ 678] x 100 = -68.88%
Formula
Percentage change = [(211 - 678) / 678] x 100
Subtract the new number by the original number
211 - 678 = -467
-467 ÷ 678 = -0.6887905604719764
-0.6887905604719764 x 100 = -68.88%