52.38% is the change from 84 to 128
Calculation steps:
[( 128 - 84 ) ÷ 84] x 100 = 52.38%
Formula
Percentage change = [(128 - 84) / 84] x 100
Subtract the new number by the original number
128 - 84 = 44
44 ÷ 84 = 0.5238095238095238
0.5238095238095238 x 100 = 52.38%