342.7% is the change from 89 to 394
Calculation steps:
[( 394 - 89 ) ÷ 89] x 100 = 342.7%
Formula
Percentage change = [(394 - 89) / 89] x 100
Subtract the new number by the original number
394 - 89 = 305
305 ÷ 89 = 3.4269662921348316
3.4269662921348316 x 100 = 342.7%