70.15% is the change from 392 to 667
Calculation steps:
[( 667 - 392 ) ÷ 392] x 100 = 70.15%
Formula
Percentage change = [(667 - 392) / 392] x 100
Subtract the new number by the original number
667 - 392 = 275
275 ÷ 392 = 0.701530612244898
0.701530612244898 x 100 = 70.15%