61.83% is the change from 131 to 212
Calculation steps:
[( 212 - 131 ) ÷ 131] x 100 = 61.83%
Formula
Percentage change = [(212 - 131) / 131] x 100
Subtract the new number by the original number
212 - 131 = 81
81 ÷ 131 = 0.6183206106870229
0.6183206106870229 x 100 = 61.83%