72.62% is the change from 84 to 145
Calculation steps:
[( 145 - 84 ) ÷ 84] x 100 = 72.62%
Formula
Percentage change = [(145 - 84) / 84] x 100
Subtract the new number by the original number
145 - 84 = 61
61 ÷ 84 = 0.7261904761904762
0.7261904761904762 x 100 = 72.62%