135.36% is the change from 345 to 812
Calculation steps:
[( 812 - 345 ) ÷ 345] x 100 = 135.36%
Formula
Percentage change = [(812 - 345) / 345] x 100
Subtract the new number by the original number
812 - 345 = 467
467 ÷ 345 = 1.3536231884057972
1.3536231884057972 x 100 = 135.36%