-62.5% is the change from 208 to 78
Calculation steps:
[( 78 - 208 ) ÷ 208] x 100 = -62.5%
Formula
Percentage change = [(78 - 208) / 208] x 100
Subtract the new number by the original number
78 - 208 = -130
-130 ÷ 208 = -0.625
-0.625 x 100 = -62.5%
Example