77.11% is the change from 83 to 147
Calculation steps:
[( 147 - 83 ) ÷ 83] x 100 = 77.11%
Formula
Percentage change = [(147 - 83) / 83] x 100
Subtract the new number by the original number
147 - 83 = 64
64 ÷ 83 = 0.7710843373493976
0.7710843373493976 x 100 = 77.11%