61.48% is the change from 135 to 218
Calculation steps:
[( 218 - 135 ) ÷ 135] x 100 = 61.48%
Formula
Percentage change = [(218 - 135) / 135] x 100
Subtract the new number by the original number
218 - 135 = 83
83 ÷ 135 = 0.6148148148148148
0.6148148148148148 x 100 = 61.48%