305.66% is the change from 53 to 215
Calculation steps:
[( 215 - 53 ) ÷ 53] x 100 = 305.66%
Formula
Percentage change = [(215 - 53) / 53] x 100
Subtract the new number by the original number
215 - 53 = 162
162 ÷ 53 = 3.056603773584906
3.056603773584906 x 100 = 305.66%