70.23% is the change from 393 to 669
Calculation steps:
[( 669 - 393 ) ÷ 393] x 100 = 70.23%
Formula
Percentage change = [(669 - 393) / 393] x 100
Subtract the new number by the original number
669 - 393 = 276
276 ÷ 393 = 0.7022900763358778
0.7022900763358778 x 100 = 70.23%