109.3% is the change from 43 to 90
Calculation steps:
[( 90 - 43 ) ÷ 43] x 100 = 109.3%
Formula
Percentage change = [(90 - 43) / 43] x 100
Subtract the new number by the original number
90 - 43 = 47
47 ÷ 43 = 1.0930232558139534
1.0930232558139534 x 100 = 109.3%