1.2% is the change from 83 to 84
Calculation steps:
[( 84 - 83 ) ÷ 83] x 100 = 1.2%
Formula
Percentage change = [(84 - 83) / 83] x 100
Subtract the new number by the original number
84 - 83 = 1
1 ÷ 83 = 0.012048192771084338
0.012048192771084338 x 100 = 1.2%