61.45% is the change from 83 to 134
Calculation steps:
[( 134 - 83 ) ÷ 83] x 100 = 61.45%
Formula
Percentage change = [(134 - 83) / 83] x 100
Subtract the new number by the original number
134 - 83 = 51
51 ÷ 83 = 0.6144578313253012
0.6144578313253012 x 100 = 61.45%