272.14% is the change from 140 to 521
Calculation steps:
[( 521 - 140 ) ÷ 140] x 100 = 272.14%
Formula
Percentage change = [(521 - 140) / 140] x 100
Subtract the new number by the original number
521 - 140 = 381
381 ÷ 140 = 2.7214285714285715
2.7214285714285715 x 100 = 272.14%