133.8% is the change from 284 to 664
Calculation steps:
[( 664 - 284 ) ÷ 284] x 100 = 133.8%
Formula
Percentage change = [(664 - 284) / 284] x 100
Subtract the new number by the original number
664 - 284 = 380
380 ÷ 284 = 1.3380281690140845
1.3380281690140845 x 100 = 133.8%