138.85% is the change from 278 to 664
Calculation steps:
[( 664 - 278 ) ÷ 278] x 100 = 138.85%
Formula
Percentage change = [(664 - 278) / 278] x 100
Subtract the new number by the original number
664 - 278 = 386
386 ÷ 278 = 1.3884892086330936
1.3884892086330936 x 100 = 138.85%