145.45% is the change from 33 to 81
Calculation steps:
[( 81 - 33 ) ÷ 33] x 100 = 145.45%
Formula
Percentage change = [(81 - 33) / 33] x 100
Subtract the new number by the original number
81 - 33 = 48
48 ÷ 33 = 1.4545454545454546
1.4545454545454546 x 100 = 145.45%