78.95% is the change from 190 to 340
Calculation steps:
[( 340 - 190 ) ÷ 190] x 100 = 78.95%
Formula
Percentage change = [(340 - 190) / 190] x 100
Subtract the new number by the original number
340 - 190 = 150
150 ÷ 190 = 0.7894736842105263
0.7894736842105263 x 100 = 78.95%