-61.06% is the change from 678 to 264
Calculation steps:
[( 264 - 678 ) ÷ 678] x 100 = -61.06%
Formula
Percentage change = [(264 - 678) / 678] x 100
Subtract the new number by the original number
264 - 678 = -414
-414 ÷ 678 = -0.6106194690265486
-0.6106194690265486 x 100 = -61.06%