70.66% is the change from 392 to 669
Calculation steps:
[( 669 - 392 ) ÷ 392] x 100 = 70.66%
Formula
Percentage change = [(669 - 392) / 392] x 100
Subtract the new number by the original number
669 - 392 = 277
277 ÷ 392 = 0.7066326530612245
0.7066326530612245 x 100 = 70.66%