122.96% is the change from 270 to 602
Calculation steps:
[( 602 - 270 ) ÷ 270] x 100 = 122.96%
Formula
Percentage change = [(602 - 270) / 270] x 100
Subtract the new number by the original number
602 - 270 = 332
332 ÷ 270 = 1.2296296296296296
1.2296296296296296 x 100 = 122.96%