85.45% is the change from 330 to 612
Calculation steps:
[( 612 - 330 ) ÷ 330] x 100 = 85.45%
Formula
Percentage change = [(612 - 330) / 330] x 100
Subtract the new number by the original number
612 - 330 = 282
282 ÷ 330 = 0.8545454545454545
0.8545454545454545 x 100 = 85.45%