372.73% is the change from 66 to 312
Calculation steps:
[( 312 - 66 ) ÷ 66] x 100 = 372.73%
Formula
Percentage change = [(312 - 66) / 66] x 100
Subtract the new number by the original number
312 - 66 = 246
246 ÷ 66 = 3.727272727272727
3.727272727272727 x 100 = 372.73%