298.48% is the change from 66 to 263
Calculation steps:
[( 263 - 66 ) ÷ 66] x 100 = 298.48%
Formula
Percentage change = [(263 - 66) / 66] x 100
Subtract the new number by the original number
263 - 66 = 197
197 ÷ 66 = 2.984848484848485
2.984848484848485 x 100 = 298.48%