-24.73% is the change from 279 to 210
Calculation steps:
[( 210 - 279 ) ÷ 279] x 100 = -24.73%
Formula
Percentage change = [(210 - 279) / 279] x 100
Subtract the new number by the original number
210 - 279 = -69
-69 ÷ 279 = -0.24731182795698925
-0.24731182795698925 x 100 = -24.73%