99.77% is the change from 426 to 851
Calculation steps:
[( 851 - 426 ) ÷ 426] x 100 = 99.77%
Formula
Percentage change = [(851 - 426) / 426] x 100
Subtract the new number by the original number
851 - 426 = 425
425 ÷ 426 = 0.9976525821596244
0.9976525821596244 x 100 = 99.77%