17.62% is the change from 664 to 781
Calculation steps:
[( 781 - 664 ) ÷ 664] x 100 = 17.62%
Formula
Percentage change = [(781 - 664) / 664] x 100
Subtract the new number by the original number
781 - 664 = 117
117 ÷ 664 = 0.17620481927710843
0.17620481927710843 x 100 = 17.62%