152.38% is the change from 21 to 53
Calculation steps:
[( 53 - 21 ) ÷ 21] x 100 = 152.38%
Formula
Percentage change = [(53 - 21) / 21] x 100
Subtract the new number by the original number
53 - 21 = 32
32 ÷ 21 = 1.5238095238095237
1.5238095238095237 x 100 = 152.38%