154.63% is the change from 216 to 550
Calculation steps:
[( 550 - 216 ) ÷ 216] x 100 = 154.63%
Formula
Percentage change = [(550 - 216) / 216] x 100
Subtract the new number by the original number
550 - 216 = 334
334 ÷ 216 = 1.5462962962962963
1.5462962962962963 x 100 = 154.63%