628.21% is the change from 39 to 284
Calculation steps:
[( 284 - 39 ) ÷ 39] x 100 = 628.21%
Formula
Percentage change = [(284 - 39) / 39] x 100
Subtract the new number by the original number
284 - 39 = 245
245 ÷ 39 = 6.282051282051282
6.282051282051282 x 100 = 628.21%