142.3% is the change from 409 to 991
Calculation steps:
[( 991 - 409 ) ÷ 409] x 100 = 142.3%
Formula
Percentage change = [(991 - 409) / 409] x 100
Subtract the new number by the original number
991 - 409 = 582
582 ÷ 409 = 1.4229828850855746
1.4229828850855746 x 100 = 142.3%