22.78% is the change from 281 to 345
Calculation steps:
[( 345 - 281 ) ÷ 281] x 100 = 22.78%
Formula
Percentage change = [(345 - 281) / 281] x 100
Subtract the new number by the original number
345 - 281 = 64
64 ÷ 281 = 0.2277580071174377
0.2277580071174377 x 100 = 22.78%