287.5% is the change from 56 to 217
Calculation steps:
[( 217 - 56 ) ÷ 56] x 100 = 287.5%
Formula
Percentage change = [(217 - 56) / 56] x 100
Subtract the new number by the original number
217 - 56 = 161
161 ÷ 56 = 2.875
2.875 x 100 = 287.5%
Example