56.04% is the change from 91 to 142
Calculation steps:
[( 142 - 91 ) ÷ 91] x 100 = 56.04%
Formula
Percentage change = [(142 - 91) / 91] x 100
Subtract the new number by the original number
142 - 91 = 51
51 ÷ 91 = 0.5604395604395604
0.5604395604395604 x 100 = 56.04%