36.43% is the change from 645 to 880
Calculation steps:
[( 880 - 645 ) ÷ 645] x 100 = 36.43%
Formula
Percentage change = [(880 - 645) / 645] x 100
Subtract the new number by the original number
880 - 645 = 235
235 ÷ 645 = 0.3643410852713178
0.3643410852713178 x 100 = 36.43%