-88.22% is the change from 662 to 78
Calculation steps:
[( 78 - 662 ) ÷ 662] x 100 = -88.22%
Formula
Percentage change = [(78 - 662) / 662] x 100
Subtract the new number by the original number
78 - 662 = -584
-584 ÷ 662 = -0.8821752265861027
-0.8821752265861027 x 100 = -88.22%