358.8% is the change from 216 to 991
Calculation steps:
[( 991 - 216 ) ÷ 216] x 100 = 358.8%
Formula
Percentage change = [(991 - 216) / 216] x 100
Subtract the new number by the original number
991 - 216 = 775
775 ÷ 216 = 3.587962962962963
3.587962962962963 x 100 = 358.8%