81.35% is the change from 370 to 671
Calculation steps:
[( 671 - 370 ) ÷ 370] x 100 = 81.35%
Formula
Percentage change = [(671 - 370) / 370] x 100
Subtract the new number by the original number
671 - 370 = 301
301 ÷ 370 = 0.8135135135135135
0.8135135135135135 x 100 = 81.35%