1615.38% is the change from 39 to 669
Calculation steps:
[( 669 - 39 ) ÷ 39] x 100 = 1615.38%
Formula
Percentage change = [(669 - 39) / 39] x 100
Subtract the new number by the original number
669 - 39 = 630
630 ÷ 39 = 16.153846153846153
16.153846153846153 x 100 = 1615.38%