132.3% is the change from 421 to 978
Calculation steps:
[( 978 - 421 ) ÷ 421] x 100 = 132.3%
Formula
Percentage change = [(978 - 421) / 421] x 100
Subtract the new number by the original number
978 - 421 = 557
557 ÷ 421 = 1.323040380047506
1.323040380047506 x 100 = 132.3%