341.24% is the change from 97 to 428
Calculation steps:
[( 428 - 97 ) ÷ 97] x 100 = 341.24%
Formula
Percentage change = [(428 - 97) / 97] x 100
Subtract the new number by the original number
428 - 97 = 331
331 ÷ 97 = 3.4123711340206184
3.4123711340206184 x 100 = 341.24%