78.49% is the change from 423 to 755
Calculation steps:
[( 755 - 423 ) ÷ 423] x 100 = 78.49%
Formula
Percentage change = [(755 - 423) / 423] x 100
Subtract the new number by the original number
755 - 423 = 332
332 ÷ 423 = 0.7848699763593381
0.7848699763593381 x 100 = 78.49%