221.82% is the change from 307 to 988
Calculation steps:
[( 988 - 307 ) ÷ 307] x 100 = 221.82%
Formula
Percentage change = [(988 - 307) / 307] x 100
Subtract the new number by the original number
988 - 307 = 681
681 ÷ 307 = 2.218241042345277
2.218241042345277 x 100 = 221.82%