128.4% is the change from 81 to 185
Calculation steps:
[( 185 - 81 ) ÷ 81] x 100 = 128.4%
Formula
Percentage change = [(185 - 81) / 81] x 100
Subtract the new number by the original number
185 - 81 = 104
104 ÷ 81 = 1.2839506172839505
1.2839506172839505 x 100 = 128.4%