58.52% is the change from 270 to 428
Calculation steps:
[( 428 - 270 ) ÷ 270] x 100 = 58.52%
Formula
Percentage change = [(428 - 270) / 270] x 100
Subtract the new number by the original number
428 - 270 = 158
158 ÷ 270 = 0.5851851851851851
0.5851851851851851 x 100 = 58.52%