107.92% is the change from 404 to 840
Calculation steps:
[( 840 - 404 ) ÷ 404] x 100 = 107.92%
Formula
Percentage change = [(840 - 404) / 404] x 100
Subtract the new number by the original number
840 - 404 = 436
436 ÷ 404 = 1.0792079207920793
1.0792079207920793 x 100 = 107.92%