217.79% is the change from 208 to 661
Calculation steps:
[( 661 - 208 ) ÷ 208] x 100 = 217.79%
Formula
Percentage change = [(661 - 208) / 208] x 100
Subtract the new number by the original number
661 - 208 = 453
453 ÷ 208 = 2.1778846153846154
2.1778846153846154 x 100 = 217.79%