135.94% is the change from 320 to 755
Calculation steps:
[( 755 - 320 ) ÷ 320] x 100 = 135.94%
Formula
Percentage change = [(755 - 320) / 320] x 100
Subtract the new number by the original number
755 - 320 = 435
435 ÷ 320 = 1.359375
1.359375 x 100 = 135.94%