153.85% is the change from 39 to 99
Calculation steps:
[( 99 - 39 ) ÷ 39] x 100 = 153.85%
Formula
Percentage change = [(99 - 39) / 39] x 100
Subtract the new number by the original number
99 - 39 = 60
60 ÷ 39 = 1.5384615384615385
1.5384615384615385 x 100 = 153.85%