81.63% is the change from 49 to 89
Calculation steps:
[( 89 - 49 ) ÷ 49] x 100 = 81.63%
Formula
Percentage change = [(89 - 49) / 49] x 100
Subtract the new number by the original number
89 - 49 = 40
40 ÷ 49 = 0.8163265306122449
0.8163265306122449 x 100 = 81.63%