-78.14% is the change from 279 to 61
Calculation steps:
[( 61 - 279 ) ÷ 279] x 100 = -78.14%
Formula
Percentage change = [(61 - 279) / 279] x 100
Subtract the new number by the original number
61 - 279 = -218
-218 ÷ 279 = -0.7813620071684588
-0.7813620071684588 x 100 = -78.14%