128.5% is the change from 428 to 978
Calculation steps:
[( 978 - 428 ) ÷ 428] x 100 = 128.5%
Formula
Percentage change = [(978 - 428) / 428] x 100
Subtract the new number by the original number
978 - 428 = 550
550 ÷ 428 = 1.2850467289719627
1.2850467289719627 x 100 = 128.5%