252.38% is the change from 21 to 74
Calculation steps:
[( 74 - 21 ) ÷ 21] x 100 = 252.38%
Formula
Percentage change = [(74 - 21) / 21] x 100
Subtract the new number by the original number
74 - 21 = 53
53 ÷ 21 = 2.5238095238095237
2.5238095238095237 x 100 = 252.38%