336.36% is the change from 66 to 288
Calculation steps:
[( 288 - 66 ) ÷ 66] x 100 = 336.36%
Formula
Percentage change = [(288 - 66) / 66] x 100
Subtract the new number by the original number
288 - 66 = 222
222 ÷ 66 = 3.3636363636363638
3.3636363636363638 x 100 = 336.36%