-27.08% is the change from 288 to 210
Calculation steps:
[( 210 - 288 ) ÷ 288] x 100 = -27.08%
Formula
Percentage change = [(210 - 288) / 288] x 100
Subtract the new number by the original number
210 - 288 = -78
-78 ÷ 288 = -0.2708333333333333
-0.2708333333333333 x 100 = -27.08%