64.89% is the change from 131 to 216
Calculation steps:
[( 216 - 131 ) ÷ 131] x 100 = 64.89%
Formula
Percentage change = [(216 - 131) / 131] x 100
Subtract the new number by the original number
216 - 131 = 85
85 ÷ 131 = 0.648854961832061
0.648854961832061 x 100 = 64.89%