40.21% is the change from 669 to 938
Calculation steps:
[( 938 - 669 ) ÷ 669] x 100 = 40.21%
Formula
Percentage change = [(938 - 669) / 669] x 100
Subtract the new number by the original number
938 - 669 = 269
269 ÷ 669 = 0.4020926756352765
0.4020926756352765 x 100 = 40.21%