73.58% is the change from 386 to 670
Calculation steps:
[( 670 - 386 ) ÷ 386] x 100 = 73.58%
Formula
Percentage change = [(670 - 386) / 386] x 100
Subtract the new number by the original number
670 - 386 = 284
284 ÷ 386 = 0.7357512953367875
0.7357512953367875 x 100 = 73.58%