36.92% is the change from 390 to 534
Calculation steps:
[( 534 - 390 ) ÷ 390] x 100 = 36.92%
Formula
Percentage change = [(534 - 390) / 390] x 100
Subtract the new number by the original number
534 - 390 = 144
144 ÷ 390 = 0.36923076923076925
0.36923076923076925 x 100 = 36.92%