81.36% is the change from 456 to 827
Calculation steps:
[( 827 - 456 ) ÷ 456] x 100 = 81.36%
Formula
Percentage change = [(827 - 456) / 456] x 100
Subtract the new number by the original number
827 - 456 = 371
371 ÷ 456 = 0.8135964912280702
0.8135964912280702 x 100 = 81.36%