41.57% is the change from 664 to 940
Calculation steps:
[( 940 - 664 ) ÷ 664] x 100 = 41.57%
Formula
Percentage change = [(940 - 664) / 664] x 100
Subtract the new number by the original number
940 - 664 = 276
276 ÷ 664 = 0.41566265060240964
0.41566265060240964 x 100 = 41.57%