56.54% is the change from 612 to 958
Calculation steps:
[( 958 - 612 ) ÷ 612] x 100 = 56.54%
Formula
Percentage change = [(958 - 612) / 612] x 100
Subtract the new number by the original number
958 - 612 = 346
346 ÷ 612 = 0.565359477124183
0.565359477124183 x 100 = 56.54%