31.54% is the change from 669 to 880
Calculation steps:
[( 880 - 669 ) ÷ 669] x 100 = 31.54%
Formula
Percentage change = [(880 - 669) / 669] x 100
Subtract the new number by the original number
880 - 669 = 211
211 ÷ 669 = 0.3153961136023916
0.3153961136023916 x 100 = 31.54%