100.7% is the change from 427 to 857
Calculation steps:
[( 857 - 427 ) ÷ 427] x 100 = 100.7%
Formula
Percentage change = [(857 - 427) / 427] x 100
Subtract the new number by the original number
857 - 427 = 430
430 ÷ 427 = 1.0070257611241218
1.0070257611241218 x 100 = 100.7%