155.75% is the change from 391 to 1000
Calculation steps:
[( 1000 - 391 ) ÷ 391] x 100 = 155.75%
Formula
Percentage change = [(1000 - 391) / 391] x 100
Subtract the new number by the original number
1000 - 391 = 609
609 ÷ 391 = 1.5575447570332481
1.5575447570332481 x 100 = 155.75%