53.49% is the change from 43 to 66
Calculation steps:
[( 66 - 43 ) ÷ 43] x 100 = 53.49%
Formula
Percentage change = [(66 - 43) / 43] x 100
Subtract the new number by the original number
66 - 43 = 23
23 ÷ 43 = 0.5348837209302325
0.5348837209302325 x 100 = 53.49%