280.7% is the change from 57 to 217
Calculation steps:
[( 217 - 57 ) ÷ 57] x 100 = 280.7%
Formula
Percentage change = [(217 - 57) / 57] x 100
Subtract the new number by the original number
217 - 57 = 160
160 ÷ 57 = 2.807017543859649
2.807017543859649 x 100 = 280.7%