20.21% is the change from 668 to 803
Calculation steps:
[( 803 - 668 ) ÷ 668] x 100 = 20.21%
Formula
Percentage change = [(803 - 668) / 668] x 100
Subtract the new number by the original number
803 - 668 = 135
135 ÷ 668 = 0.20209580838323354
0.20209580838323354 x 100 = 20.21%