320.38% is the change from 157 to 660
Calculation steps:
[( 660 - 157 ) ÷ 157] x 100 = 320.38%
Formula
Percentage change = [(660 - 157) / 157] x 100
Subtract the new number by the original number
660 - 157 = 503
503 ÷ 157 = 3.2038216560509554
3.2038216560509554 x 100 = 320.38%